20368990600 has 48 divisors (see below), whose sum is σ = 54123321600. Its totient is φ = 6983653440.

The previous prime is 20368990573. The next prime is 20368990633. The reversal of 20368990600 is 609986302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7273240 + ... + 7276039.

It is an arithmetic number, because the mean of its divisors is an integer number (1127569200).

Almost surely, 2^20368990600 is an apocalyptic number.

20368990600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20368990600 is an abundant number, since it is smaller than the sum of its proper divisors (33754331000).

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

20368990600 is a wasteful number, since it uses less digits than its factorization.

20368990600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14549302 (or 14549293 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 20368990600 in words is "twenty billion, three hundred sixty-eight million, nine hundred ninety thousand, six hundred".