25568418916 has 12 divisors (see below), whose sum is σ = 44750554240. Its totient is φ = 12782546280.

The previous prime is 25568418907. The next prime is 25568418937. The reversal of 25568418916 is 61981486552.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380880 + ... + 442951.

Almost surely, 2^25568418916 is an apocalyptic number.

It is an amenable number.

25568418916 is a deficient number, since it is larger than the sum of its proper divisors (19182135324).

25568418916 is a wasteful number, since it uses less digits than its factorization.

25568418916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831594 (or 831592 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 55.

The spelling of 25568418916 in words is "twenty-five billion, five hundred sixty-eight million, four hundred eighteen thousand, nine hundred sixteen".