1165166072 has 64 divisors (see below), whose sum is σ = 2533662720. Its totient is φ = 492041088.

The previous prime is 1165166071. The next prime is 1165166081. The reversal of 1165166072 is 2706615611.

It is a super-2 number, since 2×1165166072² = 2715223950679818368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165166071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1229903 + ... + 1230849.

It is an arithmetic number, because the mean of its divisors is an integer number (39588480).

Almost surely, 2^1165166072 is an apocalyptic number.

It is an amenable number.

1165166072 is an abundant number, since it is smaller than the sum of its proper divisors (1368496648).

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

1165166072 is a wasteful number, since it uses less digits than its factorization.

1165166072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260 (or 1256 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 1165166072 is about 34134.5290285365. The cubic root of 1165166072 is about 1052.2750585538.

The spelling of 1165166072 in words is "one billion, one hundred sixty-five million, one hundred sixty-six thousand, seventy-two".