1120165872 has 120 divisors (see below), whose sum is σ = 3512739456. Its totient is φ = 306117504.

The previous prime is 1120165847. The next prime is 1120165877. The reversal of 1120165872 is 2785610211.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120165877) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43743 + ... + 64449.

Almost surely, 2^1120165872 is an apocalyptic number.

1120165872 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 1120165872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1756369728).

1120165872 is an abundant number, since it is smaller than the sum of its proper divisors (2392573584).

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

1120165872 is a wasteful number, since it uses less digits than its factorization.

1120165872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20755 (or 20742 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 1120165872 is about 33468.8791566135. The cubic root of 1120165872 is about 1038.5500850646.

The spelling of 1120165872 in words is "one billion, one hundred twenty million, one hundred sixty-five thousand, eight hundred seventy-two".