666432466 has 32 divisors (see below), whose sum is σ = 1160640000. Its totient is φ = 281092032.

The previous prime is 666432443. The next prime is 666432523. The reversal of 666432466 is 664234666.

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, 429460 + ... + 431008.

It is an arithmetic number, because the mean of its divisors is an integer number (36270000).

Almost surely, 2^666432466 is an apocalyptic number.

666432466 is a deficient number, since it is larger than the sum of its proper divisors (494207534).

666432466 is a wasteful number, since it uses less digits than its factorization.

666432466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026.

The product of its digits is 746496, while the sum is 43.

The square root of 666432466 is about 25815.3532999260. The cubic root of 666432466 is about 873.4781561914.

The spelling of 666432466 in words is "six hundred sixty-six million, four hundred thirty-two thousand, four hundred sixty-six".