20667096600 has 72 divisors (see below), whose sum is σ = 64078917660. Its totient is φ = 5510286720.

The previous prime is 20667096581. The next prime is 20667096617. The reversal of 20667096600 is 669076602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3518466 + ... + 3524334.

Almost surely, 2^20667096600 is an apocalyptic number.

20667096600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20667096600 is an abundant number, since it is smaller than the sum of its proper divisors (43411821060).

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

20667096600 is an frugal number, since it uses more digits than its factorization.

20667096600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11757 (or 5879 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 20667096600 in words is "twenty billion, six hundred sixty-seven million, ninety-six thousand, six hundred".