20624604404 has 12 divisors (see below), whose sum is σ = 36450415428. Its totient is φ = 10210200000.

The previous prime is 20624604401. The next prime is 20624604433. The reversal of 20624604404 is 40440642602.

It can be written as a sum of positive squares in 2 ways, for example, as 19558581904 + 1066022500 = 139852^2 + 32650^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20624604401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25525097 + ... + 25525904.

It is an arithmetic number, because the mean of its divisors is an integer number (3037534619).

Almost surely, 2^20624604404 is an apocalyptic number.

It is an amenable number.

20624604404 is a deficient number, since it is larger than the sum of its proper divisors (15825811024).

20624604404 is a wasteful number, since it uses less digits than its factorization.

20624604404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51051106 (or 51051104 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

The spelling of 20624604404 in words is "twenty billion, six hundred twenty-four million, six hundred four thousand, four hundred four".