660116610 has 48 divisors (see below), whose sum is σ = 1721566080. Its totient is φ = 175491360.

The previous prime is 660116591. The next prime is 660116623. The reversal of 660116610 is 16611066.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18711 + ... + 40869.

It is an arithmetic number, because the mean of its divisors is an integer number (35865960).

Almost surely, 2^660116610 is an apocalyptic number.

660116610 is an abundant number, since it is smaller than the sum of its proper divisors (1061449470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

660116610 is a wasteful number, since it uses less digits than its factorization.

660116610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22503 (or 22500 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 660116610 is about 25692.7345761404. The cubic root of 660116610 is about 870.7100426226.

Adding to 660116610 its reverse (16611066), we get a palindrome (676727676).

The spelling of 660116610 in words is "six hundred sixty million, one hundred sixteen thousand, six hundred ten".