111216625436 has 24 divisors (see below), whose sum is σ = 222653756640. Its totient is φ = 47617016832.

The previous prime is 111216625433. The next prime is 111216625523. The reversal of 111216625436 is 634526612111.

It is a self number, because there is not a number n which added to its sum of digits gives 111216625436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111216625433) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1940045 + ... + 1996548.

It is an arithmetic number, because the mean of its divisors is an integer number (9277239860).

Almost surely, 2^111216625436 is an apocalyptic number.

It is an amenable number.

111216625436 is an abundant number, since it is smaller than the sum of its proper divisors (111437131204).

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

111216625436 is a wasteful number, since it uses less digits than its factorization.

111216625436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3937613 (or 3937611 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The spelling of 111216625436 in words is "one hundred eleven billion, two hundred sixteen million, six hundred twenty-five thousand, four hundred thirty-six".