25016731161242 has 64 divisors (see below), whose sum is σ = 41173061529600. Its totient is φ = 11355711719040.

The previous prime is 25016731161229. The next prime is 25016731161281. The reversal of 25016731161242 is 24216113761052.

It is a self number, because there is not a number n which added to its sum of digits gives 25016731161242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 301586609 + ... + 301669547.

It is an arithmetic number, because the mean of its divisors is an integer number (643329086400).

Almost surely, 2^{25016731161242} is an apocalyptic number.

25016731161242 is a deficient number, since it is larger than the sum of its proper divisors (16156330368358).

25016731161242 is a wasteful number, since it uses less digits than its factorization.

25016731161242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85491.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 25016731161242 in words is "twenty-five trillion, sixteen billion, seven hundred thirty-one million, one hundred sixty-one thousand, two hundred forty-two".