25640455110116 has 72 divisors (see below), whose sum is σ = 59417520031296. Its totient is φ = 9555449090880.

The previous prime is 25640455110113. The next prime is 25640455110131. The reversal of 25640455110116 is 61101155404652.

It is not an unprimeable number, because it can be changed into a prime (25640455110113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 258485291 + ... + 258584466.

It is an arithmetic number, because the mean of its divisors is an integer number (825243333768).

Almost surely, 2^{25640455110116} is an apocalyptic number.

It is an amenable number.

25640455110116 is an abundant number, since it is smaller than the sum of its proper divisors (33777064921180).

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

25640455110116 is a wasteful number, since it uses less digits than its factorization.

25640455110116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517069809 (or 517069800 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 41.

The spelling of 25640455110116 in words is "twenty-five trillion, six hundred forty billion, four hundred fifty-five million, one hundred ten thousand, one hundred sixteen".