57116616 has 64 divisors (see below), whose sum is σ = 147510720. Its totient is φ = 18420480.

The previous prime is 57116593. The next prime is 57116621. The reversal of 57116616 is 61661175.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105306 + ... + 105846.

It is an arithmetic number, because the mean of its divisors is an integer number (2304855).

Almost surely, 2^57116616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57116616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73755360).

57116616 is an abundant number, since it is smaller than the sum of its proper divisors (90394104).

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

57116616 is a wasteful number, since it uses less digits than its factorization.

57116616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 682 counting only the distinct ones).

The product of its digits is 7560, while the sum is 33.

The square root of 57116616 is about 7557.5535724201. The cubic root of 57116616 is about 385.1123886199.

The spelling of 57116616 in words is "fifty-seven million, one hundred sixteen thousand, six hundred sixteen".