66430832 has 40 divisors (see below), whose sum is σ = 146771856. Its totient is φ = 28855296.

The previous prime is 66430823. The next prime is 66430841. The reversal of 66430832 is 23803466.

It is an interprime number because it is at equal distance from previous prime (66430823) and next prime (66430841).

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, 5858 + ... + 12929.

Almost surely, 2^66430832 is an apocalyptic number.

It is an amenable number.

66430832 is an abundant number, since it is smaller than the sum of its proper divisors (80341024).

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

66430832 is a wasteful number, since it uses less digits than its factorization.

66430832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18825 (or 18819 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 66430832 is about 8150.5111496151. The cubic root of 66430832 is about 405.0014367678.

The spelling of 66430832 in words is "sixty-six million, four hundred thirty thousand, eight hundred thirty-two".