66656732342 has 16 divisors (see below), whose sum is σ = 100511129664. Its totient is φ = 33153408000.

The previous prime is 66656732327. The next prime is 66656732399. The reversal of 66656732342 is 24323765666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251492 + ... + 443352.

It is an arithmetic number, because the mean of its divisors is an integer number (6281945604).

Almost surely, 2^66656732342 is an apocalyptic number.

66656732342 is a deficient number, since it is larger than the sum of its proper divisors (33854397322).

66656732342 is a wasteful number, since it uses less digits than its factorization.

66656732342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192775.

The product of its digits is 6531840, while the sum is 50.

The spelling of 66656732342 in words is "sixty-six billion, six hundred fifty-six million, seven hundred thirty-two thousand, three hundred forty-two".