666000432 has 60 divisors (see below), whose sum is σ = 1973523240. Its totient is φ = 208940544.

The previous prime is 666000371. The next prime is 666000473. The reversal of 666000432 is 234000666.

It is a junction number, because it is equal to n+sod(n) for n = 666000396 and 666000405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133582 + ... + 138477.

It is an arithmetic number, because the mean of its divisors is an integer number (32892054).

Almost surely, 2^666000432 is an apocalyptic number.

It is an amenable number.

666000432 is an abundant number, since it is smaller than the sum of its proper divisors (1307522808).

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

666000432 is a wasteful number, since it uses less digits than its factorization.

666000432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272090 (or 272081 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 666000432 is about 25806.9841709565. The cubic root of 666000432 is about 873.2893629488.

The spelling of 666000432 in words is "six hundred sixty-six million, four hundred thirty-two", and thus it is an aban number.