666452135492 has 48 divisors (see below), whose sum is σ = 1429761739392. Its totient is φ = 267472423680.

The previous prime is 666452135267. The next prime is 666452135519. The reversal of 666452135492 is 294531254666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25315673 + ... + 25341984.

It is an arithmetic number, because the mean of its divisors is an integer number (29786702904).

Almost surely, 2^666452135492 is an apocalyptic number.

It is an amenable number.

666452135492 is an abundant number, since it is smaller than the sum of its proper divisors (763309603900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

666452135492 is a wasteful number, since it uses less digits than its factorization.

666452135492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50657708 (or 50657706 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 53.

The spelling of 666452135492 in words is "six hundred sixty-six billion, four hundred fifty-two million, one hundred thirty-five thousand, four hundred ninety-two".