660616160 has 48 divisors (see below), whose sum is σ = 1563087456. Its totient is φ = 263843328.

The previous prime is 660616157. The next prime is 660616183. The reversal of 660616160 is 61616066.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116102 + ... + 121658.

It is an arithmetic number, because the mean of its divisors is an integer number (32564322).

Almost surely, 2^660616160 is an apocalyptic number.

It is an amenable number.

660616160 is an abundant number, since it is smaller than the sum of its proper divisors (902471296).

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

660616160 is a wasteful number, since it uses less digits than its factorization.

660616160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6315 (or 6307 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 660616160 is about 25702.4543575122. The cubic root of 660616160 is about 870.9296268194.

The spelling of 660616160 in words is "six hundred sixty million, six hundred sixteen thousand, one hundred sixty".