666029612 has 6 divisors (see below), whose sum is σ = 1165551828. Its totient is φ = 333014804.

The previous prime is 666029597. The next prime is 666029657. The reversal of 666029612 is 216920666.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83253698 + ... + 83253705.

It is an arithmetic number, because the mean of its divisors is an integer number (194258638).

Almost surely, 2^666029612 is an apocalyptic number.

It is an amenable number.

666029612 is a deficient number, since it is larger than the sum of its proper divisors (499522216).

666029612 is a wasteful number, since it uses less digits than its factorization.

666029612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166507407 (or 166507405 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 666029612 is about 25807.5495155972. The cubic root of 666029612 is about 873.3021168002.

The spelling of 666029612 in words is "six hundred sixty-six million, twenty-nine thousand, six hundred twelve".