660372196 has 24 divisors (see below), whose sum is σ = 1262713536. Its totient is φ = 299692320.

The previous prime is 660372131. The next prime is 660372211. The reversal of 660372196 is 691273066.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16870 + ... + 40066.

It is an arithmetic number, because the mean of its divisors is an integer number (52613064).

Almost surely, 2^660372196 is an apocalyptic number.

It is an amenable number.

660372196 is a deficient number, since it is larger than the sum of its proper divisors (602341340).

660372196 is a wasteful number, since it uses less digits than its factorization.

660372196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23859 (or 23857 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 660372196 is about 25697.7079911808. The cubic root of 660372196 is about 870.8224028623.

The spelling of 660372196 in words is "six hundred sixty million, three hundred seventy-two thousand, one hundred ninety-six".