20007905504 has 48 divisors (see below), whose sum is σ = 41696590320. Its totient is φ = 9434342400.

The previous prime is 20007905473. The next prime is 20007905563. The reversal of 20007905504 is 40550970002.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210797 + ... + 290604.

It is an arithmetic number, because the mean of its divisors is an integer number (868678965).

Almost surely, 2^20007905504 is an apocalyptic number.

It is an amenable number.

20007905504 is an abundant number, since it is smaller than the sum of its proper divisors (21688684816).

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

20007905504 is a wasteful number, since it uses less digits than its factorization.

20007905504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501483 (or 501475 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The spelling of 20007905504 in words is "twenty billion, seven million, nine hundred five thousand, five hundred four".