660313560 has 64 divisors (see below), whose sum is σ = 1985184000. Its totient is φ = 175706496.

The previous prime is 660313553. The next prime is 660313571. The reversal of 660313560 is 65313066.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 52791 + ... + 64089.

It is an arithmetic number, because the mean of its divisors is an integer number (31018500).

Almost surely, 2^660313560 is an apocalyptic number.

660313560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

660313560 is an abundant number, since it is smaller than the sum of its proper divisors (1324870440).

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

660313560 is a wasteful number, since it uses less digits than its factorization.

660313560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11800 (or 11796 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 660313560 is about 25696.5670858969. The cubic root of 660313560 is about 870.7966279765.

The spelling of 660313560 in words is "six hundred sixty million, three hundred thirteen thousand, five hundred sixty".