20666276600 has 48 divisors (see below), whose sum is σ = 48524874120. Its totient is φ = 8184656000.

The previous prime is 20666276597. The next prime is 20666276633. The reversal of 20666276600 is 667266602.

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, 491342 + ... + 531741.

Almost surely, 2^20666276600 is an apocalyptic number.

20666276600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20666276600 is an abundant number, since it is smaller than the sum of its proper divisors (27858597520).

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

20666276600 is a wasteful number, since it uses less digits than its factorization.

20666276600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023200 (or 1023191 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 41.

The spelling of 20666276600 in words is "twenty billion, six hundred sixty-six million, two hundred seventy-six thousand, six hundred".