111163661266 has 64 divisors (see below), whose sum is σ = 212515902720. Its totient is φ = 42455162880.

The previous prime is 111163661221. The next prime is 111163661281. The reversal of 111163661266 is 662166361111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9404376 + ... + 9416188.

It is an arithmetic number, because the mean of its divisors is an integer number (3320560980).

Almost surely, 2^111163661266 is an apocalyptic number.

111163661266 is a deficient number, since it is larger than the sum of its proper divisors (101352241454).

111163661266 is a wasteful number, since it uses less digits than its factorization.

111163661266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13939.

The product of its digits is 46656, while the sum is 40.

The spelling of 111163661266 in words is "one hundred eleven billion, one hundred sixty-three million, six hundred sixty-one thousand, two hundred sixty-six".