25016163131456 has 112 divisors (see below), whose sum is σ = 57829322390400. Its totient is φ = 10514230272000.

The previous prime is 25016163131417. The next prime is 25016163131459. The reversal of 25016163131456 is 65413136161052.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (25016163131459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53213720 + ... + 53681768.

Almost surely, 2^{25016163131456} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25016163131456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28914661195200).

25016163131456 is an abundant number, since it is smaller than the sum of its proper divisors (32813159258944).

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

25016163131456 is a wasteful number, since it uses less digits than its factorization.

25016163131456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470372 (or 470362 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 25016163131456 in words is "twenty-five trillion, sixteen billion, one hundred sixty-three million, one hundred thirty-one thousand, four hundred fifty-six".