20604424264 has 16 divisors (see below), whose sum is σ = 38635299900. Its totient is φ = 10301677632.

The previous prime is 20604424241. The next prime is 20604424279. The reversal of 20604424264 is 46242440602.

It can be written as a sum of positive squares in 2 ways, for example, as 16715904100 + 3888520164 = 129290^2 + 62358^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131722 + ... + 241990.

Almost surely, 2^20604424264 is an apocalyptic number.

It is an amenable number.

20604424264 is a deficient number, since it is larger than the sum of its proper divisors (18030875636).

20604424264 is a wasteful number, since it uses less digits than its factorization.

20604424264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133632 (or 133628 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 20604424264 its reverse (46242440602), we get a palindrome (66846864866).

The spelling of 20604424264 in words is "twenty billion, six hundred four million, four hundred twenty-four thousand, two hundred sixty-four".