111775370816 has 28 divisors (see below), whose sum is σ = 227798965788. Its totient is φ = 54377206272.

The previous prime is 111775370801. The next prime is 111775370831. The reversal of 111775370816 is 618073577111.

It is an interprime number because it is at equal distance from previous prime (111775370801) and next prime (111775370831).

It can be written as a sum of positive squares in 2 ways, for example, as 94435748416 + 17339622400 = 307304^2 + 131680^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23598851 + ... + 23603586.

Almost surely, 2^111775370816 is an apocalyptic number.

111775370816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

111775370816 is an abundant number, since it is smaller than the sum of its proper divisors (116023594972).

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

111775370816 is an equidigital number, since it uses as much as digits as its factorization.

111775370816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47202486 (or 47202476 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 47.

The spelling of 111775370816 in words is "one hundred eleven billion, seven hundred seventy-five million, three hundred seventy thousand, eight hundred sixteen".