20476036404400 has 60 divisors (see below), whose sum is σ = 49216009891672. Its totient is φ = 8186696363520.

The previous prime is 20476036404361. The next prime is 20476036404449. The reversal of 20476036404400 is 440463067402.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 10737069 + ... + 12499468.

Almost surely, 2^{20476036404400} is an apocalyptic number.

20476036404400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20476036404400 is an abundant number, since it is smaller than the sum of its proper divisors (28739973487272).

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

20476036404400 is a wasteful number, since it uses less digits than its factorization.

20476036404400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23238758 (or 23238747 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 40.

The spelling of 20476036404400 in words is "twenty trillion, four hundred seventy-six billion, thirty-six million, four hundred four thousand, four hundred".