20542625044 has 12 divisors (see below), whose sum is σ = 37109258368. Its totient is φ = 9939979800.

The previous prime is 20542625041. The next prime is 20542625069. The reversal of 20542625044 is 44052624502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20542625041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82833042 + ... + 82833289.

Almost surely, 2^20542625044 is an apocalyptic number.

It is an amenable number.

20542625044 is a deficient number, since it is larger than the sum of its proper divisors (16566633324).

20542625044 is a wasteful number, since it uses less digits than its factorization.

20542625044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165666366 (or 165666364 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

The spelling of 20542625044 in words is "twenty billion, five hundred forty-two million, six hundred twenty-five thousand, forty-four".