111666222396 has 36 divisors (see below), whose sum is σ = 282430431192. Its totient is φ = 37200574944.

The previous prime is 111666222373. The next prime is 111666222401. The reversal of 111666222396 is 693222666111.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 832546 + ... + 957321.

Almost surely, 2^111666222396 is an apocalyptic number.

It is an amenable number.

111666222396 is an abundant number, since it is smaller than the sum of its proper divisors (170764208796).

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

111666222396 is a wasteful number, since it uses less digits than its factorization.

111666222396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791610 (or 1791605 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The spelling of 111666222396 in words is "one hundred eleven billion, six hundred sixty-six million, two hundred twenty-two thousand, three hundred ninety-six".