66880252 has 6 divisors (see below), whose sum is σ = 117040448. Its totient is φ = 33440124.

The previous prime is 66880241. The next prime is 66880277. The reversal of 66880252 is 25208866.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8360028 + ... + 8360035.

Almost surely, 2^66880252 is an apocalyptic number.

It is an amenable number.

66880252 is a deficient number, since it is larger than the sum of its proper divisors (50160196).

66880252 is a wasteful number, since it uses less digits than its factorization.

66880252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16720067 (or 16720065 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 66880252 is about 8178.0347272435. The cubic root of 66880252 is about 405.9126944696.

The spelling of 66880252 in words is "sixty-six million, eight hundred eighty thousand, two hundred fifty-two".