111616425361 has 4 divisors (see below), whose sum is σ = 127561628992. Its totient is φ = 95671221732.

The previous prime is 111616425341. The next prime is 111616425373. The reversal of 111616425361 is 163524616111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111616425361 - 2⁷ = 111616425233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111616425361.

It is not an unprimeable number, because it can be changed into a prime (111616425301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7972601805 + ... + 7972601818.

It is an arithmetic number, because the mean of its divisors is an integer number (31890407248).

Almost surely, 2^111616425361 is an apocalyptic number.

It is an amenable number.

111616425361 is a deficient number, since it is larger than the sum of its proper divisors (15945203631).

111616425361 is an equidigital number, since it uses as much as digits as its factorization.

111616425361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15945203630.

The product of its digits is 25920, while the sum is 37.

The spelling of 111616425361 in words is "one hundred eleven billion, six hundred sixteen million, four hundred twenty-five thousand, three hundred sixty-one".