666132123132777 has 16 divisors (see below), whose sum is σ = 1015072564488192. Its totient is φ = 380641643325840.

The previous prime is 666132123132769. The next prime is 666132123132811. The reversal of 666132123132777 is 777231321231666.

It is not a de Polignac number, because 666132123132777 - 2³ = 666132123132769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (666132123132767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218625099 + ... + 221651072.

It is an arithmetic number, because the mean of its divisors is an integer number (63442035280512).

Almost surely, 2^{666132123132777} is an apocalyptic number.

It is an amenable number.

666132123132777 is a deficient number, since it is larger than the sum of its proper divisors (348940441355415).

666132123132777 is a wasteful number, since it uses less digits than its factorization.

666132123132777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440348228.

The product of its digits is 16003008, while the sum is 57.

The spelling of 666132123132777 in words is "six hundred sixty-six trillion, one hundred thirty-two billion, one hundred twenty-three million, one hundred thirty-two thousand, seven hundred seventy-seven".