20664758200 has 48 divisors (see below), whose sum is σ = 48069747000. Its totient is φ = 8261742720.

The previous prime is 20664758173. The next prime is 20664758237. The reversal of 20664758200 is 285746602.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 388831 + ... + 438769.

Almost surely, 2^20664758200 is an apocalyptic number.

20664758200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20664758200 is an abundant number, since it is smaller than the sum of its proper divisors (27404988800).

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

20664758200 is a wasteful number, since it uses less digits than its factorization.

20664758200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52024 (or 52015 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 20664758200 in words is "twenty billion, six hundred sixty-four million, seven hundred fifty-eight thousand, two hundred".