25161160956 has 24 divisors (see below), whose sum is σ = 58809408000. Its totient is φ = 8372763312.

The previous prime is 25161160909. The next prime is 25161160987. The reversal of 25161160956 is 65906116152.

It is a congruent number.

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, 1778956 + ... + 1793043.

It is an arithmetic number, because the mean of its divisors is an integer number (2450392000).

Almost surely, 2^25161160956 is an apocalyptic number.

It is an amenable number.

25161160956 is an abundant number, since it is smaller than the sum of its proper divisors (33648247044).

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

25161160956 is a wasteful number, since it uses less digits than its factorization.

25161160956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3572593 (or 3572591 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 42.

The spelling of 25161160956 in words is "twenty-five billion, one hundred sixty-one million, one hundred sixty thousand, nine hundred fifty-six".