1166462565 has 32 divisors (see below), whose sum is σ = 1978058880. Its totient is φ = 584945664.

The previous prime is 1166462551. The next prime is 1166462581. The reversal of 1166462565 is 5652646611.

It is not a de Polignac number, because 1166462565 - 2¹⁴ = 1166446181 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 401197 + ... + 404093.

It is an arithmetic number, because the mean of its divisors is an integer number (61814340).

Almost surely, 2^1166462565 is an apocalyptic number.

1166462565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1166462565 is a deficient number, since it is larger than the sum of its proper divisors (811596315).

1166462565 is a wasteful number, since it uses less digits than its factorization.

1166462565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4501.

The product of its digits is 259200, while the sum is 42.

The square root of 1166462565 is about 34153.5146800443. The cubic root of 1166462565 is about 1052.6652065281.

The spelling of 1166462565 in words is "one billion, one hundred sixty-six million, four hundred sixty-two thousand, five hundred sixty-five".