1162165872 has 40 divisors (see below), whose sum is σ = 3431157376. Its totient is φ = 332047296.

The previous prime is 1162165871. The next prime is 1162165889. The reversal of 1162165872 is 2785612611.

It is a self number, because there is not a number n which added to its sum of digits gives 1162165872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1162165871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1729078 + ... + 1729749.

Almost surely, 2^1162165872 is an apocalyptic number.

1162165872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1162165872 is an abundant number, since it is smaller than the sum of its proper divisors (2268991504).

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

1162165872 is a wasteful number, since it uses less digits than its factorization.

1162165872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3458845 (or 3458839 counting only the distinct ones).

The product of its digits is 40320, while the sum is 39.

The square root of 1162165872 is about 34090.5539996052. The cubic root of 1162165872 is about 1051.3711103854.

The spelling of 1162165872 in words is "one billion, one hundred sixty-two million, one hundred sixty-five thousand, eight hundred seventy-two".