66430804 has 24 divisors (see below), whose sum is σ = 127175328. Its totient is φ = 30111840.

The previous prime is 66430759. The next prime is 66430811. The reversal of 66430804 is 40803466.

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, 15567 + ... + 19369.

It is an arithmetic number, because the mean of its divisors is an integer number (5298972).

Almost surely, 2^66430804 is an apocalyptic number.

It is an amenable number.

66430804 is a deficient number, since it is larger than the sum of its proper divisors (60744524).

66430804 is a wasteful number, since it uses less digits than its factorization.

66430804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4215 (or 4213 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 66430804 is about 8150.5094319312. The cubic root of 66430804 is about 405.0013798663.

The spelling of 66430804 in words is "sixty-six million, four hundred thirty thousand, eight hundred four".