660246172 has 6 divisors (see below), whose sum is σ = 1155430808. Its totient is φ = 330123084.

The previous prime is 660246163. The next prime is 660246217. The reversal of 660246172 is 271642066.

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, 82530768 + ... + 82530775.

Almost surely, 2^660246172 is an apocalyptic number.

It is an amenable number.

660246172 is a deficient number, since it is larger than the sum of its proper divisors (495184636).

660246172 is a wasteful number, since it uses less digits than its factorization.

660246172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165061547 (or 165061545 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 660246172 is about 25695.2558267086. The cubic root of 660246172 is about 870.7670040509.

The spelling of 660246172 in words is "six hundred sixty million, two hundred forty-six thousand, one hundred seventy-two".