616668360 has 128 divisors (see below), whose sum is σ = 2306534400. Its totient is φ = 128136960.

The previous prime is 616668347. The next prime is 616668397. The reversal of 616668360 is 63866616.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24130 + ... + 42609.

It is an arithmetic number, because the mean of its divisors is an integer number (18019800).

Almost surely, 2^616668360 is an apocalyptic number.

616668360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

616668360 is an abundant number, since it is smaller than the sum of its proper divisors (1689866040).

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

616668360 is a wasteful number, since it uses less digits than its factorization.

616668360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66771 (or 66767 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 616668360 is about 24832.8081376231. The cubic root of 616668360 is about 851.1717910039.

The spelling of 616668360 in words is "six hundred sixteen million, six hundred sixty-eight thousand, three hundred sixty".