1109156160 has 672 divisors, whose sum is σ = 4628327040. Its totient is φ = 222953472.

The previous prime is 1109156131. The next prime is 1109156189. The reversal of 1109156160 is 616519011.

It is an interprime number because it is at equal distance from previous prime (1109156131) and next prime (1109156189).

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15193884 + ... + 15193956.

Almost surely, 2^1109156160 is an apocalyptic number.

1109156160 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 1109156160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2314163520).

1109156160 is an abundant number, since it is smaller than the sum of its proper divisors (3519170880).

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

1109156160 is a wasteful number, since it uses less digits than its factorization.

1109156160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 30.

The square root of 1109156160 is about 33303.9961566176. The cubic root of 1109156160 is about 1035.1363632789.

The spelling of 1109156160 in words is "one billion, one hundred nine million, one hundred fifty-six thousand, one hundred sixty".