1166101565 has 16 divisors (see below), whose sum is σ = 1415232000. Its totient is φ = 922333632.

The previous prime is 1166101543. The next prime is 1166101589. The reversal of 1166101565 is 5651016611.

It is a cyclic number.

It is not a de Polignac number, because 1166101565 - 2⁸ = 1166101309 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162626 + ... + 169644.

It is an arithmetic number, because the mean of its divisors is an integer number (88452000).

Almost surely, 2^1166101565 is an apocalyptic number.

It is an amenable number.

1166101565 is a deficient number, since it is larger than the sum of its proper divisors (249130435).

1166101565 is a wasteful number, since it uses less digits than its factorization.

1166101565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7396.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 1166101565 is about 34148.2293098778. The cubic root of 1166101565 is about 1052.5566014287.

The spelling of 1166101565 in words is "one billion, one hundred sixty-six million, one hundred one thousand, five hundred sixty-five".