66733896 has 32 divisors (see below), whose sum is σ = 170906400. Its totient is φ = 21701760.

The previous prime is 66733861. The next prime is 66733967. The reversal of 66733896 is 69833766.

It is a happy 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, 32926 + ... + 34893.

It is an arithmetic number, because the mean of its divisors is an integer number (5340825).

Almost surely, 2^66733896 is an apocalyptic number.

It is an amenable number.

66733896 is an abundant number, since it is smaller than the sum of its proper divisors (104172504).

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

66733896 is a wasteful number, since it uses less digits than its factorization.

66733896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67869 (or 67865 counting only the distinct ones).

The product of its digits is 979776, while the sum is 48.

The square root of 66733896 is about 8169.0817109391. The cubic root of 66733896 is about 405.6163880419.

The spelling of 66733896 in words is "sixty-six million, seven hundred thirty-three thousand, eight hundred ninety-six".