616711968 has 60 divisors (see below), whose sum is σ = 1813740390. Its totient is φ = 205569792.

The previous prime is 616711961. The next prime is 616711973. The reversal of 616711968 is 869117616.

It can be written as a sum of positive squares in only one way, i.e., 373726224 + 242985744 = 19332^2 + 15588^2 .

It is not an unprimeable number, because it can be changed into a prime (616711961) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 116373 + ... + 121556.

Almost surely, 2^616711968 is an apocalyptic number.

It is an amenable number.

616711968 is an abundant number, since it is smaller than the sum of its proper divisors (1197028422).

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

616711968 is a wasteful number, since it uses less digits than its factorization.

616711968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237951 (or 237934 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 616711968 is about 24833.6861540932. The cubic root of 616711968 is about 851.1918542053.

The spelling of 616711968 in words is "six hundred sixteen million, seven hundred eleven thousand, nine hundred sixty-eight".