25146116656 has 20 divisors (see below), whose sum is σ = 51284843800. Its totient is φ = 11911318272.

The previous prime is 25146116641. The next prime is 25146116669. The reversal of 25146116656 is 65661164152.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41358441 + ... + 41359048.

It is an arithmetic number, because the mean of its divisors is an integer number (2564242190).

Almost surely, 2^25146116656 is an apocalyptic number.

It is an amenable number.

25146116656 is an abundant number, since it is smaller than the sum of its proper divisors (26138727144).

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

25146116656 is a wasteful number, since it uses less digits than its factorization.

25146116656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82717516 (or 82717510 counting only the distinct ones).

The product of its digits is 259200, while the sum is 43.

The spelling of 25146116656 in words is "twenty-five billion, one hundred forty-six million, one hundred sixteen thousand, six hundred fifty-six".