15268909056 has 104 divisors (see below), whose sum is σ = 41706475104. Its totient is φ = 4965335040.

The previous prime is 15268909039. The next prime is 15268909063. The reversal of 15268909056 is 65090986251.

It is a super-2 number, since 2×15268909056² (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 7 ways as a sum of consecutive naturals, for example, 488655 + ... + 518961.

Almost surely, 2^15268909056 is an apocalyptic number.

15268909056 is a gapful number since it is divisible by the number (16) 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 15268909056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20853237552).

15268909056 is an abundant number, since it is smaller than the sum of its proper divisors (26437566048).

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

15268909056 is an equidigital number, since it uses as much as digits as its factorization.

15268909056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30375 (or 30353 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 51.

The spelling of 15268909056 in words is "fifteen billion, two hundred sixty-eight million, nine hundred nine thousand, fifty-six".