666334052757 has 32 divisors (see below), whose sum is σ = 1040399360000. Its totient is φ = 420323379120.

The previous prime is 666334052749. The next prime is 666334052773. The reversal of 666334052757 is 757250433666.

It is not a de Polignac number, because 666334052757 - 2³ = 666334052749 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666334052707) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 384757 + ... + 1216842.

It is an arithmetic number, because the mean of its divisors is an integer number (32512480000).

Almost surely, 2^666334052757 is an apocalyptic number.

It is an amenable number.

666334052757 is a deficient number, since it is larger than the sum of its proper divisors (374065307243).

666334052757 is a wasteful number, since it uses less digits than its factorization.

666334052757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602438 (or 1602432 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 54.

The spelling of 666334052757 in words is "six hundred sixty-six billion, three hundred thirty-four million, fifty-two thousand, seven hundred fifty-seven".