20607820804 has 12 divisors (see below), whose sum is σ = 36065105104. Its totient is φ = 10303505064.

The previous prime is 20607820781. The next prime is 20607820813. The reversal of 20607820804 is 40802870602.

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, 32779 + ... + 205645.

Almost surely, 2^20607820804 is an apocalyptic number.

It is an amenable number.

20607820804 is a deficient number, since it is larger than the sum of its proper divisors (15457284300).

20607820804 is a wasteful number, since it uses less digits than its factorization.

20607820804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202674 (or 202672 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The spelling of 20607820804 in words is "twenty billion, six hundred seven million, eight hundred twenty thousand, eight hundred four".