1167256165 has 16 divisors (see below), whose sum is σ = 1475870400. Its totient is φ = 883792512.

The previous prime is 1167256157. The next prime is 1167256217. The reversal of 1167256165 is 5616527611.

It is a cyclic number.

It is not a de Polignac number, because 1167256165 - 2³ = 1167256157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101814 + ... + 112696.

It is an arithmetic number, because the mean of its divisors is an integer number (92241900).

Almost surely, 2^1167256165 is an apocalyptic number.

It is an amenable number.

1167256165 is a deficient number, since it is larger than the sum of its proper divisors (308614235).

1167256165 is a wasteful number, since it uses less digits than its factorization.

1167256165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12036.

The product of its digits is 75600, while the sum is 40.

The square root of 1167256165 is about 34165.1308354000. The cubic root of 1167256165 is about 1052.9038784900.

The spelling of 1167256165 in words is "one billion, one hundred sixty-seven million, two hundred fifty-six thousand, one hundred sixty-five".