15255796968 has 96 divisors (see below), whose sum is σ = 42559957440. Its totient is φ = 4933958400.

The previous prime is 15255796949. The next prime is 15255796979. The reversal of 15255796968 is 86969755251.

15255796968 is a `hidden beast` number, since 1 + 52 + 5 + 579 + 6 + 9 + 6 + 8 = 666.

It is a super-2 number, since 2×15255796968² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 451180 + ... + 483812.

It is an arithmetic number, because the mean of its divisors is an integer number (443332890).

Almost surely, 2^15255796968 is an apocalyptic number.

15255796968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15255796968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21279978720).

15255796968 is an abundant number, since it is smaller than the sum of its proper divisors (27304160472).

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

15255796968 is a wasteful number, since it uses less digits than its factorization.

15255796968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32839 (or 32832 counting only the distinct ones).

The product of its digits is 40824000, while the sum is 63.

The spelling of 15255796968 in words is "fifteen billion, two hundred fifty-five million, seven hundred ninety-six thousand, nine hundred sixty-eight".