51066600507 has 12 divisors (see below), whose sum is σ = 79436934304. Its totient is φ = 31425600240.

The previous prime is 51066600491. The next prime is 51066600521. The reversal of 51066600507 is 70500666015.

It is a happy number.

It is not a de Polignac number, because 51066600507 - 2⁴ = 51066600491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51066600107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 218233219 + ... + 218233452.

Almost surely, 2^51066600507 is an apocalyptic number.

51066600507 is a deficient number, since it is larger than the sum of its proper divisors (28370333797).

51066600507 is a wasteful number, since it uses less digits than its factorization.

51066600507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436466690 (or 436466687 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The spelling of 51066600507 in words is "fifty-one billion, sixty-six million, six hundred thousand, five hundred seven".