10565157256 has 8 divisors (see below), whose sum is σ = 19809669870. Its totient is φ = 5282578624.

The previous prime is 10565157247. The next prime is 10565157257. The reversal of 10565157256 is 65275156501.

It can be written as a sum of positive squares in only one way, i.e., 7135180900 + 3429976356 = 84470^2 + 58566^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×10565157256² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10565157257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660322321 + ... + 660322336.

Almost surely, 2^10565157256 is an apocalyptic number.

It is an amenable number.

10565157256 is a deficient number, since it is larger than the sum of its proper divisors (9244512614).

10565157256 is a wasteful number, since it uses less digits than its factorization.

10565157256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320644663 (or 1320644659 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 43.

The spelling of 10565157256 in words is "ten billion, five hundred sixty-five million, one hundred fifty-seven thousand, two hundred fifty-six".