111675578120 has 64 divisors (see below), whose sum is σ = 255825918000. Its totient is φ = 43865653248.

The previous prime is 111675578111. The next prime is 111675578143. The reversal of 111675578120 is 21875576111.

It can be written as a sum of positive squares in 8 ways, for example, as 43386390436 + 68289187684 = 208294^2 + 261322^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 585176 + ... + 752184.

Almost surely, 2^111675578120 is an apocalyptic number.

111675578120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111675578120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127912959000).

111675578120 is an abundant number, since it is smaller than the sum of its proper divisors (144150339880).

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

111675578120 is a wasteful number, since it uses less digits than its factorization.

111675578120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167322 (or 167318 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 44.

The spelling of 111675578120 in words is "one hundred eleven billion, six hundred seventy-five million, five hundred seventy-eight thousand, one hundred twenty".