20603020604 has 12 divisors (see below), whose sum is σ = 36056432664. Its totient is φ = 10301182704.

The previous prime is 20603020597. The next prime is 20603020649. The reversal of 20603020604 is 40602030602.

It is a self number, because there is not a number n which added to its sum of digits gives 20603020604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109094 + ... + 230450.

It is an arithmetic number, because the mean of its divisors is an integer number (3004702722).

Almost surely, 2^20603020604 is an apocalyptic number.

It is an amenable number.

20603020604 is a deficient number, since it is larger than the sum of its proper divisors (15453412060).

20603020604 is a wasteful number, since it uses less digits than its factorization.

20603020604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163804 (or 163802 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The spelling of 20603020604 in words is "twenty billion, six hundred three million, twenty thousand, six hundred four".