20125665044 has 12 divisors (see below), whose sum is σ = 35262714144. Its totient is φ = 10050603864.

The previous prime is 20125665019. The next prime is 20125665059. The reversal of 20125665044 is 44056652102.

It is a junction number, because it is equal to n+sod(n) for n = 20125664995 and 20125665013.

It is a congruent number.

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, 3053462 + ... + 3060045.

It is an arithmetic number, because the mean of its divisors is an integer number (2938559512).

Almost surely, 2^20125665044 is an apocalyptic number.

It is an amenable number.

20125665044 is a deficient number, since it is larger than the sum of its proper divisors (15137049100).

20125665044 is a wasteful number, since it uses less digits than its factorization.

20125665044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6114334 (or 6114332 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 20125665044 in words is "twenty billion, one hundred twenty-five million, six hundred sixty-five thousand, forty-four".