111219056640 has 896 divisors, whose sum is σ = 427792896000. Its totient is φ = 27327725568.

The previous prime is 111219056617. The next prime is 111219056699. The reversal of 111219056640 is 46650912111.

111219056640 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 1 + 9 + 0 + 5 + 6 + 640 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 111219056595 and 111219056604.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1407836121 + ... + 1407836199.

Almost surely, 2^111219056640 is an apocalyptic number.

111219056640 is a gapful number since it is divisible by the number (10) 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 111219056640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213896448000).

111219056640 is an abundant number, since it is smaller than the sum of its proper divisors (316573839360).

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

111219056640 is an equidigital number, since it uses as much as digits as its factorization.

111219056640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

Adding to 111219056640 its reverse (46650912111), we get a palindrome (157869968751).

The spelling of 111219056640 in words is "one hundred eleven billion, two hundred nineteen million, fifty-six thousand, six hundred forty".