20604523612 has 24 divisors (see below), whose sum is σ = 37228584960. Its totient is φ = 9967919280.

The previous prime is 20604523579. The next prime is 20604523631. The reversal of 20604523612 is 21632540602.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 736089 + ... + 763567.

It is an arithmetic number, because the mean of its divisors is an integer number (1551191040).

Almost surely, 2^20604523612 is an apocalyptic number.

It is an amenable number.

20604523612 is a deficient number, since it is larger than the sum of its proper divisors (16624061348).

20604523612 is a wasteful number, since it uses less digits than its factorization.

20604523612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33561 (or 33559 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 20604523612 in words is "twenty billion, six hundred four million, five hundred twenty-three thousand, six hundred twelve".