20554780704 has 24 divisors (see below), whose sum is σ = 53956299600. Its totient is φ = 6851593536.

The previous prime is 20554780693. The next prime is 20554780717. The reversal of 20554780704 is 40708745502.

It is a tau number, because it is divible by the number of its divisors (24).

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, 107056054 + ... + 107056245.

It is an arithmetic number, because the mean of its divisors is an integer number (2248179150).

Almost surely, 2^20554780704 is an apocalyptic number.

20554780704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20554780704 is an abundant number, since it is smaller than the sum of its proper divisors (33401518896).

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

20554780704 is a wasteful number, since it uses less digits than its factorization.

20554780704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214112312 (or 214112304 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 42.

The spelling of 20554780704 in words is "twenty billion, five hundred fifty-four million, seven hundred eighty thousand, seven hundred four".