20604565206 has 48 divisors (see below), whose sum is σ = 45142528704. Its totient is φ = 6791496192.

The previous prime is 20604565147. The next prime is 20604565229. The reversal of 20604565206 is 60256540602.

20604565206 is a `hidden beast` number, since 20 + 60 + 4 + 56 + 520 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2312496 + ... + 2321388.

It is an arithmetic number, because the mean of its divisors is an integer number (940469348).

Almost surely, 2^20604565206 is an apocalyptic number.

20604565206 is an abundant number, since it is smaller than the sum of its proper divisors (24537963498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20604565206 is a wasteful number, since it uses less digits than its factorization.

20604565206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10325 (or 10322 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 20604565206 in words is "twenty billion, six hundred four million, five hundred sixty-five thousand, two hundred six".