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64553291088 = 243111326335759
BaseRepresentation
bin111100000111101011…
…010000110101010000
320011121211101221212220
4330013223100311100
52024201120303323
645353321021040
74443455630556
oct740753206520
9204554357786
1064553291088
1125416717050
1210616924780
136119ba2080
1431a54b1bd6
151a2c36b0e3
hexf07ad0d50

64553291088 has 160 divisors (see below), whose sum is σ = 196667412480. Its totient is φ = 17987704320.

The previous prime is 64553291057. The next prime is 64553291167. The reversal of 64553291088 is 88019235546.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 64553291088.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1787353 + ... + 1823111.

It is an arithmetic number, because the mean of its divisors is an integer number (1229171328).

Almost surely, 264553291088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64553291088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98333706240).

64553291088 is an abundant number, since it is smaller than the sum of its proper divisors (132114121392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64553291088 is a wasteful number, since it uses less digits than its factorization.

64553291088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36057 (or 36051 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 64553291088 in words is "sixty-four billion, five hundred fifty-three million, two hundred ninety-one thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 11 12 13 16 22 24 26 33 39 44 48 52 66 78 88 104 132 143 156 176 208 263 264 286 312 429 526 528 572 624 789 858 1052 1144 1578 1716 2104 2288 2893 3156 3419 3432 4208 5786 6312 6838 6864 8679 10257 11572 12624 13676 17358 20514 23144 27352 34716 35759 37609 41028 46288 54704 69432 71518 75218 82056 107277 112827 138864 143036 150436 164112 214554 225654 286072 300872 393349 429108 451308 464867 572144 601744 786698 858216 902616 929734 1180047 1394601 1573396 1716432 1805232 1859468 2360094 2789202 3146792 3718936 4720188 5113537 5578404 6293584 7437872 9404617 9440376 10227074 11156808 15340611 18809234 18880752 20454148 22313616 28213851 30681222 37618468 40908296 56427702 61362444 75236936 81816592 103450787 112855404 122260021 122724888 150473872 206901574 225710808 244520042 245449776 310352361 366780063 413803148 451421616 489040084 620704722 733560126 827606296 978080168 1241409444 1344860231 1467120252 1655212592 1956160336 2482818888 2689720462 2934240504 4034580693 4965637776 5379440924 5868481008 8069161386 10758881848 16138322772 21517763696 32276645544 64553291088