51066761700 has 72 divisors (see below), whose sum is σ = 155529663520. Its totient is φ = 12901075200.

The previous prime is 51066761699. The next prime is 51066761749. The reversal of 51066761700 is 716766015.

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, 4473841 + ... + 4485240.

Almost surely, 2^51066761700 is an apocalyptic number.

51066761700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51066761700 is an abundant number, since it is smaller than the sum of its proper divisors (104462901820).

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

51066761700 is a wasteful number, since it uses less digits than its factorization.

51066761700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8959117 (or 8959110 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 39.

The spelling of 51066761700 in words is "fifty-one billion, sixty-six million, seven hundred sixty-one thousand, seven hundred".