111666967848 has 128 divisors (see below), whose sum is σ = 318990960000. Its totient is φ = 36179928576.

The previous prime is 111666967837. The next prime is 111666967861. The reversal of 111666967848 is 848769666111.

It is a super-2 number, since 2×111666967848² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1084990 + ... + 1183442.

It is an arithmetic number, because the mean of its divisors is an integer number (2492116875).

Almost surely, 2^111666967848 is an apocalyptic number.

111666967848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111666967848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159495480000).

111666967848 is an abundant number, since it is smaller than the sum of its proper divisors (207323992152).

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

111666967848 is a wasteful number, since it uses less digits than its factorization.

111666967848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98616 (or 98606 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 63.

The spelling of 111666967848 in words is "one hundred eleven billion, six hundred sixty-six million, nine hundred sixty-seven thousand, eight hundred forty-eight".