111966057 has 40 divisors (see below), whose sum is σ = 192384192. Its totient is φ = 63568800.

The previous prime is 111966037. The next prime is 111966059. The reversal of 111966057 is 750669111.

It is a happy number.

It is not a de Polignac number, because 111966057 - 2⁷ = 111965929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111966059) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 102082 + ... + 103172.

Almost surely, 2^111966057 is an apocalyptic number.

It is an amenable number.

111966057 is a deficient number, since it is larger than the sum of its proper divisors (80418135).

111966057 is a wasteful number, since it uses less digits than its factorization.

111966057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291 (or 1282 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 111966057 is about 10581.4014667245. The cubic root of 111966057 is about 481.9797529990.

It can be divided in two parts, 1119 and 66057, that added together give a palindrome (67176).

The spelling of 111966057 in words is "one hundred eleven million, nine hundred sixty-six thousand, fifty-seven".