666231006 has 32 divisors (see below), whose sum is σ = 1537056000. Its totient is φ = 188571456.

The previous prime is 666230989. The next prime is 666231043. The reversal of 666231006 is 600132666.

It is a congruent number.

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, 69631 + ... + 78618.

It is an arithmetic number, because the mean of its divisors is an integer number (48033000).

Almost surely, 2^666231006 is an apocalyptic number.

666231006 is an abundant number, since it is smaller than the sum of its proper divisors (870824994).

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

666231006 is a wasteful number, since it uses less digits than its factorization.

666231006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148368.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 666231006 is about 25811.4510634331. The cubic root of 666231006 is about 873.3901309460.

The spelling of 666231006 in words is "six hundred sixty-six million, two hundred thirty-one thousand, six".