666146630 has 16 divisors (see below), whose sum is σ = 1199768544. Its totient is φ = 266302080.

The previous prime is 666146609. The next prime is 666146699. The reversal of 666146630 is 36641666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 851 + ... + 36510.

It is an arithmetic number, because the mean of its divisors is an integer number (74985534).

Almost surely, 2^666146630 is an apocalyptic number.

666146630 is a deficient number, since it is larger than the sum of its proper divisors (533621914).

666146630 is a wasteful number, since it uses less digits than its factorization.

666146630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39151.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 666146630 is about 25809.8165433232. The cubic root of 666146630 is about 873.3532587118.

The spelling of 666146630 in words is "six hundred sixty-six million, one hundred forty-six thousand, six hundred thirty".