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22448455420660 = 2257126958768667
BaseRepresentation
bin1010001101010101100000…
…01101100000101011110100
32221111001101110022010201021
411012222300031200223310
510420243414041430120
6115424402243110524
74504563436505653
oct506526015405364
987431343263637
1022448455420660
117175377944a15
1226267b2372444
13c6ab59c25b89
1457872241519a
1528de086edaaa
hex146ab0360af4

22448455420660 has 48 divisors (see below), whose sum is σ = 47983442048640. Its totient is φ = 8820001393280.

The previous prime is 22448455420639. The next prime is 22448455420667. The reversal of 22448455420660 is 6602455484422.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22448455420598 and 22448455420607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22448455420667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29002354 + ... + 29766313.

It is an arithmetic number, because the mean of its divisors is an integer number (999655042680).

Almost surely, 222448455420660 is an apocalyptic number.

22448455420660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22448455420660 is an abundant number, since it is smaller than the sum of its proper divisors (25534986627980).

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

22448455420660 is a wasteful number, since it uses less digits than its factorization.

22448455420660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58769016 (or 58769014 counting only the distinct ones).

The product of its (nonzero) digits is 14745600, while the sum is 52.

The spelling of 22448455420660 in words is "twenty-two trillion, four hundred forty-eight billion, four hundred fifty-five million, four hundred twenty thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 71 142 269 284 355 538 710 1076 1345 1420 2690 5380 19099 38198 76396 95495 190990 381980 58768667 117537334 235074668 293843335 587686670 1175373340 4172575357 8345150714 15808771423 16690301428 20862876785 31617542846 41725753570 63235085692 79043857115 83451507140 158087714230 316175428460 1122422771033 2244845542066 4489691084132 5612113855165 11224227710330 22448455420660