66136623644332 has 12 divisors (see below), whose sum is σ = 115739148919576. Its totient is φ = 33068295381600.

The previous prime is 66136623644303. The next prime is 66136623644347. The reversal of 66136623644332 is 23344632663166.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11688832 + ... + 16398232.

Almost surely, 2^{66136623644332} is an apocalyptic number.

It is an amenable number.

66136623644332 is a deficient number, since it is larger than the sum of its proper divisors (49602525275244).

66136623644332 is a wasteful number, since it uses less digits than its factorization.

66136623644332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8220288 (or 8220286 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 55.

The spelling of 66136623644332 in words is "sixty-six trillion, one hundred thirty-six billion, six hundred twenty-three million, six hundred forty-four thousand, three hundred thirty-two".