660953192 has 8 divisors (see below), whose sum is σ = 1239287250. Its totient is φ = 330476592.

The previous prime is 660953177. The next prime is 660953207. The reversal of 660953192 is 291359066.

It is an interprime number because it is at equal distance from previous prime (660953177) and next prime (660953207).

It can be written as a sum of positive squares in only one way, i.e., 486026116 + 174927076 = 22046^2 + 13226^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41309567 + ... + 41309582.

Almost surely, 2^660953192 is an apocalyptic number.

It is an amenable number.

660953192 is a deficient number, since it is larger than the sum of its proper divisors (578334058).

660953192 is a wasteful number, since it uses less digits than its factorization.

660953192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82619155 (or 82619151 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 660953192 is about 25709.0099381520. The cubic root of 660953192 is about 871.0777114250.

The spelling of 660953192 in words is "six hundred sixty million, nine hundred fifty-three thousand, one hundred ninety-two".