660753142 has 32 divisors (see below), whose sum is σ = 1159488000. Its totient is φ = 282285864.

The previous prime is 660753133. The next prime is 660753157. The reversal of 660753142 is 241357066.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 660753098 and 660753107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244933 + ... + 247615.

It is an arithmetic number, because the mean of its divisors is an integer number (36234000).

Almost surely, 2^660753142 is an apocalyptic number.

660753142 is a deficient number, since it is larger than the sum of its proper divisors (498734858).

660753142 is a wasteful number, since it uses less digits than its factorization.

660753142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065 (or 3051 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 660753142 is about 25705.1189843580. The cubic root of 660753142 is about 870.9898198354.

The spelling of 660753142 in words is "six hundred sixty million, seven hundred fifty-three thousand, one hundred forty-two".