111344615536 has 160 divisors (see below), whose sum is σ = 274923403776. Its totient is φ = 42430080000.

The previous prime is 111344615513. The next prime is 111344615549. The reversal of 111344615536 is 635516443111.

It is a happy number.

It is a congruent number.

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, 10322466 + ... + 10333246.

Almost surely, 2^111344615536 is an apocalyptic number.

111344615536 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 111344615536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137461701888).

111344615536 is an abundant number, since it is smaller than the sum of its proper divisors (163578788240).

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

111344615536 is a wasteful number, since it uses less digits than its factorization.

111344615536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10991 (or 10985 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The spelling of 111344615536 in words is "one hundred eleven billion, three hundred forty-four million, six hundred fifteen thousand, five hundred thirty-six".