1109368512 has 168 divisors, whose sum is σ = 3647943936. Its totient is φ = 315753984.

The previous prime is 1109368501. The next prime is 1109368553. The reversal of 1109368512 is 2158639011.

1109368512 is a `hidden beast` number, since 1 + 109 + 36 + 8 + 512 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2027823 + ... + 2028369.

It is an arithmetic number, because the mean of its divisors is an integer number (21713952).

Almost surely, 2^1109368512 is an apocalyptic number.

1109368512 is a gapful number since it is divisible by the number (12) 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 1109368512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1823971968).

1109368512 is an abundant number, since it is smaller than the sum of its proper divisors (2538575424).

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

1109368512 is a wasteful number, since it uses less digits than its factorization.

1109368512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075 (or 1062 counting only the distinct ones).

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

The square root of 1109368512 is about 33307.1840899227. The cubic root of 1109368512 is about 1035.2024192766.

The spelling of 1109368512 in words is "one billion, one hundred nine million, three hundred sixty-eight thousand, five hundred twelve".