20556714604 has 6 divisors (see below), whose sum is σ = 35974250564. Its totient is φ = 10278357300.

The previous prime is 20556714553. The next prime is 20556714613. The reversal of 20556714604 is 40641765502.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2569589322 + ... + 2569589329.

Almost surely, 2^20556714604 is an apocalyptic number.

It is an amenable number.

20556714604 is a deficient number, since it is larger than the sum of its proper divisors (15417535960).

20556714604 is a wasteful number, since it uses less digits than its factorization.

20556714604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5139178655 (or 5139178653 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 20556714604 in words is "twenty billion, five hundred fifty-six million, seven hundred fourteen thousand, six hundred four".