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664583311077 = 37439715974751
BaseRepresentation
bin10011010101111000100…
…00001000111011100101
32100112101221202012001120
421222330100020323211
541342031311423302
61225145542444153
766004664636460
oct11527420107345
92315357665046
10664583311077
11236936a54054
12a8973733659
134a892b1068a
142424772c2d7
1512449b689bc
hex9abc408ee5

664583311077 has 64 divisors (see below), whose sum is σ = 1047808548864. Its totient is φ = 366799104000.

The previous prime is 664583311037. The next prime is 664583311109. The reversal of 664583311077 is 770113385466.

It is not a de Polignac number, because 664583311077 - 215 = 664583278309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664583311037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 139880452 + ... + 139885202.

It is an arithmetic number, because the mean of its divisors is an integer number (16372008576).

Almost surely, 2664583311077 is an apocalyptic number.

It is an amenable number.

664583311077 is a deficient number, since it is larger than the sum of its proper divisors (383225237787).

664583311077 is a wasteful number, since it uses less digits than its factorization.

664583311077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6498.

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 664583311077 in words is "six hundred sixty-four billion, five hundred eighty-three million, three hundred eleven thousand, seventy-seven".

Divisors: 1 3 7 21 43 97 129 291 301 679 903 1597 2037 4171 4751 4791 11179 12513 14253 29197 33257 33537 68671 87591 99771 154909 204293 206013 460847 464727 480697 612879 1084363 1382541 1430051 1442091 3225929 3253089 4290153 6661087 7587347 9677787 19816421 19983261 22762041 46627609 53111429 59449263 138714947 139882827 159334287 326255921 416144841 735972659 978767763 2207917977 2283791447 5151808613 6851374341 15455425839 31646824337 94940473011 221527770359 664583311077