111163161600 has 396 divisors, whose sum is σ = 402881385816. Its totient is φ = 29281320960.

The previous prime is 111163161587. The next prime is 111163161611. The reversal of 111163161600 is 6161361111.

111163161600 is a `hidden beast` number, since 1 + 1 + 1 + 16 + 31 + 616 + 0 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 19120294 + ... + 19126106.

Almost surely, 2^111163161600 is an apocalyptic number.

111163161600 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 111163161600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201440692908).

111163161600 is an abundant number, since it is smaller than the sum of its proper divisors (291718224216).

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

111163161600 is a wasteful number, since it uses less digits than its factorization.

111163161600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5932 (or 5906 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The spelling of 111163161600 in words is "one hundred eleven billion, one hundred sixty-three million, one hundred sixty-one thousand, six hundred".