111166675554 has 64 divisors (see below), whose sum is σ = 245067752448. Its totient is φ = 33336888000.

The previous prime is 111166675547. The next prime is 111166675561. The reversal of 111166675554 is 455576661111.

It is an interprime number because it is at equal distance from previous prime (111166675547) and next prime (111166675561).

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 24148617 + ... + 24153219.

It is an arithmetic number, because the mean of its divisors is an integer number (3829183632).

Almost surely, 2^111166675554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111166675554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122533876224).

111166675554 is an abundant number, since it is smaller than the sum of its proper divisors (133901076894).

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

111166675554 is a wasteful number, since it uses less digits than its factorization.

111166675554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8343.

The product of its digits is 756000, while the sum is 48.

The spelling of 111166675554 in words is "one hundred eleven billion, one hundred sixty-six million, six hundred seventy-five thousand, five hundred fifty-four".