1164023665 has 16 divisors (see below), whose sum is σ = 1628956800. Its totient is φ = 798186480.

The previous prime is 1164023659. The next prime is 1164023671. The reversal of 1164023665 is 5663204611.

It is an interprime number because it is at equal distance from previous prime (1164023659) and next prime (1164023671).

It is not a de Polignac number, because 1164023665 - 2¹⁵ = 1163990897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1164023665.

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, 337651 + ... + 341080.

It is an arithmetic number, because the mean of its divisors is an integer number (101809800).

Almost surely, 2^1164023665 is an apocalyptic number.

It is an amenable number.

1164023665 is a deficient number, since it is larger than the sum of its proper divisors (464933135).

1164023665 is an frugal number, since it uses more digits than its factorization.

1164023665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678757 (or 678743 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 1164023665 is about 34117.7910334183. The cubic root of 1164023665 is about 1051.9310390709.

The spelling of 1164023665 in words is "one billion, one hundred sixty-four million, twenty-three thousand, six hundred sixty-five".