1113258816 has 196 divisors, whose sum is σ = 3358115712. Its totient is φ = 365969664.

The previous prime is 1113258803. The next prime is 1113258851. The reversal of 1113258816 is 6188523111.

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

Its product of digits (11520) is a multiple of the sum of its prime factors (360).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 4992081 + ... + 4992303.

Almost surely, 2^1113258816 is an apocalyptic number.

1113258816 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 1113258816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1679057856).

1113258816 is an abundant number, since it is smaller than the sum of its proper divisors (2244856896).

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

1113258816 is an equidigital number, since it uses as much as digits as its factorization.

1113258816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 335 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 1113258816 is about 33365.5333540467. The cubic root of 1113258816 is about 1036.4110809808.

The spelling of 1113258816 in words is "one billion, one hundred thirteen million, two hundred fifty-eight thousand, eight hundred sixteen".