111990401600 has 1008 divisors, whose sum is σ = 372267601920. Its totient is φ = 32739840000.

The previous prime is 111990401587. The next prime is 111990401617. The reversal of 111990401600 is 6104099111.

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

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1577329565 + ... + 1577329635.

Almost surely, 2^111990401600 is an apocalyptic number.

111990401600 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 111990401600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186133800960).

111990401600 is an abundant number, since it is smaller than the sum of its proper divisors (260277200320).

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

111990401600 is a wasteful number, since it uses less digits than its factorization.

111990401600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 32.

The spelling of 111990401600 in words is "one hundred eleven billion, nine hundred ninety million, four hundred one thousand, six hundred".