20380576554400 has 72 divisors (see below), whose sum is σ = 49813385801760. Its totient is φ = 8142513749760.

The previous prime is 20380576554391. The next prime is 20380576554413. The reversal of 20380576554400 is 445567508302.

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, 14510994 + ... + 15853393.

It is an arithmetic number, because the mean of its divisors is an integer number (691852580580).

Almost surely, 2^{20380576554400} is an apocalyptic number.

20380576554400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20380576554400 is an abundant number, since it is smaller than the sum of its proper divisors (29432809247360).

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

20380576554400 is a wasteful number, since it uses less digits than its factorization.

20380576554400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30365246 (or 30365233 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 49.

The spelling of 20380576554400 in words is "twenty trillion, three hundred eighty billion, five hundred seventy-six million, five hundred fifty-four thousand, four hundred".