20306264904 has 48 divisors (see below), whose sum is σ = 55022357520. Its totient is φ = 6765527520.

The previous prime is 20306264897. The next prime is 20306264921. The reversal of 20306264904 is 40946260302.

20306264904 is a `hidden beast` number, since 2 + 0 + 3 + 0 + 6 + 2 + 649 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 87259 + ... + 219605.

It is an arithmetic number, because the mean of its divisors is an integer number (1146299115).

Almost surely, 2^20306264904 is an apocalyptic number.

20306264904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20306264904 is an abundant number, since it is smaller than the sum of its proper divisors (34716092616).

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

20306264904 is a wasteful number, since it uses less digits than its factorization.

20306264904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134490 (or 134483 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 20306264904 in words is "twenty billion, three hundred six million, two hundred sixty-four thousand, nine hundred four".