111166652416 has 128 divisors (see below), whose sum is σ = 236836674360. Its totient is φ = 51996786688.

The previous prime is 111166652369. The next prime is 111166652419. The reversal of 111166652416 is 614256661111.

It can be written as a sum of positive squares in 4 ways, for example, as 101827362816 + 9339289600 = 319104^2 + 96640^2 .

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (111166652419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109739526 + ... + 109740538.

Almost surely, 2^111166652416 is an apocalyptic number.

111166652416 is a gapful number since it is divisible by the number (16) 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 111166652416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118418337180).

111166652416 is an abundant number, since it is smaller than the sum of its proper divisors (125670021944).

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

111166652416 is an equidigital number, since it uses as much as digits as its factorization.

111166652416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257 (or 1229 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The spelling of 111166652416 in words is "one hundred eleven billion, one hundred sixty-six million, six hundred fifty-two thousand, four hundred sixteen".