20562708172 has 12 divisors (see below), whose sum is σ = 35998907616. Its totient is φ = 10277306000.

The previous prime is 20562708169. The next prime is 20562708203. The reversal of 20562708172 is 27180726502.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000579 + ... + 1020922.

It is an arithmetic number, because the mean of its divisors is an integer number (2999908968).

Almost surely, 2^20562708172 is an apocalyptic number.

It is an amenable number.

20562708172 is a deficient number, since it is larger than the sum of its proper divisors (15436199444).

20562708172 is a wasteful number, since it uses less digits than its factorization.

20562708172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024048 (or 2024046 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The spelling of 20562708172 in words is "twenty billion, five hundred sixty-two million, seven hundred eight thousand, one hundred seventy-two".