111410661612 has 24 divisors (see below), whose sum is σ = 260090023536. Its totient is φ = 37118056768.

The previous prime is 111410661599. The next prime is 111410661619. The reversal of 111410661612 is 216166014111.

It is a self number, because there is not a number n which added to its sum of digits gives 111410661612.

It is not an unprimeable number, because it can be changed into a prime (111410661619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2329143 + ... + 2376494.

It is an arithmetic number, because the mean of its divisors is an integer number (10837084314).

Almost surely, 2^111410661612 is an apocalyptic number.

111410661612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111410661612 is an abundant number, since it is smaller than the sum of its proper divisors (148679361924).

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

111410661612 is a wasteful number, since it uses less digits than its factorization.

111410661612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4707617 (or 4707615 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

Adding to 111410661612 its reverse (216166014111), we get a palindrome (327576675723).

The spelling of 111410661612 in words is "one hundred eleven billion, four hundred ten million, six hundred sixty-one thousand, six hundred twelve".