111172779106 has 16 divisors (see below), whose sum is σ = 167089032000. Its totient is φ = 55476493488.

The previous prime is 111172779071. The next prime is 111172779127. The reversal of 111172779106 is 601977271111.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4459705 + ... + 4484563.

It is an arithmetic number, because the mean of its divisors is an integer number (10443064500).

Almost surely, 2^111172779106 is an apocalyptic number.

111172779106 is a deficient number, since it is larger than the sum of its proper divisors (55916252894).

111172779106 is a wasteful number, since it uses less digits than its factorization.

111172779106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29193.

The product of its (nonzero) digits is 37044, while the sum is 43.

The spelling of 111172779106 in words is "one hundred eleven billion, one hundred seventy-two million, seven hundred seventy-nine thousand, one hundred six".