23159665489 has 3 divisors (see below), whose sum is σ = 23159817673. Its totient is φ = 23159513306.

The previous prime is 23159665481. The next prime is 23159665499. The reversal of 23159665489 is 98456695132.

The square root of 23159665489 is 152183.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 23159665489 - 2³ = 23159665481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23159665481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 76092 + ... + 228274.

Almost surely, 2^23159665489 is an apocalyptic number.

23159665489 is the 152183-rd square number.

23159665489 is the 76092-nd centered octagonal number.

It is an amenable number.

23159665489 is a deficient number, since it is larger than the sum of its proper divisors (152184).

23159665489 is an frugal number, since it uses more digits than its factorization.

23159665489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304366 (or 152183 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 58.

The spelling of 23159665489 in words is "twenty-three billion, one hundred fifty-nine million, six hundred sixty-five thousand, four hundred eighty-nine".