111005666644 has 24 divisors (see below), whose sum is σ = 199637919936. Its totient is φ = 53974968000.

The previous prime is 111005666623. The next prime is 111005666687. The reversal of 111005666644 is 446666500111.

It is a junction number, because it is equal to n+sod(n) for n = 111005666597 and 111005666606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1037202 + ... + 1139209.

It is an arithmetic number, because the mean of its divisors is an integer number (8318246664).

Almost surely, 2^111005666644 is an apocalyptic number.

It is an amenable number.

111005666644 is a deficient number, since it is larger than the sum of its proper divisors (88632253292).

111005666644 is a wasteful number, since it uses less digits than its factorization.

111005666644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176767 (or 2176765 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 111005666644 in words is "one hundred eleven billion, five million, six hundred sixty-six thousand, six hundred forty-four".