57661116 has 24 divisors (see below), whose sum is σ = 138883584. Its totient is φ = 18600240.

The previous prime is 57661111. The next prime is 57661117. The reversal of 57661116 is 61116675.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57661111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77130 + ... + 77873.

It is an arithmetic number, because the mean of its divisors is an integer number (5786816).

Almost surely, 2^57661116 is an apocalyptic number.

It is an amenable number.

57661116 is an abundant number, since it is smaller than the sum of its proper divisors (81222468).

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

57661116 is a wasteful number, since it uses less digits than its factorization.

57661116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155041 (or 155039 counting only the distinct ones).

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

The square root of 57661116 is about 7593.4916869646. The cubic root of 57661116 is about 386.3322954903.

It can be divided in two parts, 5766 and 1116, that multiplied together give a cube (6434856 = 186³).

The spelling of 57661116 in words is "fifty-seven million, six hundred sixty-one thousand, one hundred sixteen".