111408045408 has 360 divisors, whose sum is σ = 363107517696. Its totient is φ = 33482211840.

The previous prime is 111408045379. The next prime is 111408045421. The reversal of 111408045408 is 804540804111.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 39829866 + ... + 39832662.

Almost surely, 2^111408045408 is an apocalyptic number.

111408045408 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 111408045408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181553758848).

111408045408 is an abundant number, since it is smaller than the sum of its proper divisors (251699472288).

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

111408045408 is a wasteful number, since it uses less digits than its factorization.

111408045408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968 (or 2940 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

Adding to 111408045408 its reverse (804540804111), we get a palindrome (915948849519).

The spelling of 111408045408 in words is "one hundred eleven billion, four hundred eight million, forty-five thousand, four hundred eight".