111051664 has 10 divisors (see below), whose sum is σ = 215162630. Its totient is φ = 55525824.

The previous prime is 111051649. The next prime is 111051679. The reversal of 111051664 is 466150111.

It is an interprime number because it is at equal distance from previous prime (111051649) and next prime (111051679).

It can be written as a sum of positive squares in only one way, i.e., 72114064 + 38937600 = 8492^2 + 6240^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3470349 + ... + 3470380.

It is an arithmetic number, because the mean of its divisors is an integer number (21516263).

Almost surely, 2^111051664 is an apocalyptic number.

It is an amenable number.

111051664 is a deficient number, since it is larger than the sum of its proper divisors (104110966).

111051664 is an equidigital number, since it uses as much as digits as its factorization.

111051664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6940737 (or 6940731 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 111051664 is about 10538.1053325539. The cubic root of 111051664 is about 480.6641039036.

It can be divided in two parts, 11105 and 1664, that added together give a square (12769 = 113²).

The spelling of 111051664 in words is "one hundred eleven million, fifty-one thousand, six hundred sixty-four".