111113556800 has 42 divisors (see below), whose sum is σ = 273408799638. Its totient is φ = 44445422080.

The previous prime is 111113556769. The next prime is 111113556817. The reversal of 111113556800 is 8655311111.

It can be written as a sum of positive squares in 3 ways, for example, as 7166638336 + 103946918464 = 84656^2 + 322408^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34721387 + ... + 34724586.

Almost surely, 2^111113556800 is an apocalyptic number.

111113556800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111113556800 is an abundant number, since it is smaller than the sum of its proper divisors (162295242838).

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

111113556800 is an equidigital number, since it uses as much as digits as its factorization.

111113556800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69445995 (or 69445980 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 32.

Adding to 111113556800 its reverse (8655311111), we get a palindrome (119768867911).

The spelling of 111113556800 in words is "one hundred eleven billion, one hundred thirteen million, five hundred fifty-six thousand, eight hundred".