1164156553 has 24 divisors (see below), whose sum is σ = 1387562400. Its totient is φ = 973542528.

The previous prime is 1164156533. The next prime is 1164156571. The reversal of 1164156553 is 3556514611.

It is not a de Polignac number, because 1164156553 - 2¹³ = 1164148361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1164156533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 400401 + ... + 403297.

It is an arithmetic number, because the mean of its divisors is an integer number (57815100).

Almost surely, 2^1164156553 is an apocalyptic number.

It is an amenable number.

1164156553 is a deficient number, since it is larger than the sum of its proper divisors (223405847).

1164156553 is a wasteful number, since it uses less digits than its factorization.

1164156553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109 (or 3102 counting only the distinct ones).

The product of its digits is 54000, while the sum is 37.

The square root of 1164156553 is about 34119.7384661723. The cubic root of 1164156553 is about 1051.9710679514.

The spelling of 1164156553 in words is "one billion, one hundred sixty-four million, one hundred fifty-six thousand, five hundred fifty-three".