20372661100 has 54 divisors (see below), whose sum is σ = 48593034812. Its totient is φ = 7408236000.

The previous prime is 20372661083. The next prime is 20372661121. The reversal of 20372661100 is 116627302.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 829746 + ... + 853945.

Almost surely, 2^20372661100 is an apocalyptic number.

20372661100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20372661100 is an abundant number, since it is smaller than the sum of its proper divisors (28220373712).

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

20372661100 is a wasteful number, since it uses less digits than its factorization.

20372661100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683727 (or 1683709 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

It can be divided in two parts, 20372 and 661100, that added together give a cube (681472 = 88³).

The spelling of 20372661100 in words is "twenty billion, three hundred seventy-two million, six hundred sixty-one thousand, one hundred".