12164664553 has 4 divisors (see below), whose sum is σ = 12164946820. Its totient is φ = 12164382288.

The previous prime is 12164664521. The next prime is 12164664581. The reversal of 12164664553 is 35546646121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 79619929 + 12085044624 = 8923^2 + 109932^2 .

It is a cyclic number.

It is not a de Polignac number, because 12164664553 - 2⁵ = 12164664521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12164664583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61518 + ... + 167671.

It is an arithmetic number, because the mean of its divisors is an integer number (3041236705).

Almost surely, 2^12164664553 is an apocalyptic number.

It is an amenable number.

12164664553 is a deficient number, since it is larger than the sum of its proper divisors (282267).

12164664553 is an equidigital number, since it uses as much as digits as its factorization.

12164664553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282266.

The product of its digits is 518400, while the sum is 43.

The spelling of 12164664553 in words is "twelve billion, one hundred sixty-four million, six hundred sixty-four thousand, five hundred fifty-three".