111990434291768 has 16 divisors (see below), whose sum is σ = 209982775169160. Its totient is φ = 55995027580000.

The previous prime is 111990434291731. The next prime is 111990434291779. The reversal of 111990434291768 is 867192434099111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21169103 + ... + 25925118.

Almost surely, 2^{111990434291768} is an apocalyptic number.

It is an amenable number.

111990434291768 is a deficient number, since it is larger than the sum of its proper divisors (97992340877392).

111990434291768 is a wasteful number, since it uses less digits than its factorization.

111990434291768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47391478 (or 47391474 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 65.

The spelling of 111990434291768 in words is "one hundred eleven trillion, nine hundred ninety billion, four hundred thirty-four million, two hundred ninety-one thousand, seven hundred sixty-eight".