23155068641 has 4 divisors (see below), whose sum is σ = 23254446852. Its totient is φ = 23055690432.

The previous prime is 23155068593. The next prime is 23155068653. The reversal of 23155068641 is 14686055132.

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 12926780416 + 10228288225 = 113696^2 + 101135^2 .

It is a cyclic number.

It is not a de Polignac number, because 23155068641 - 2⁶ = 23155068577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23155062641) 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, 49688756 + ... + 49689221.

It is an arithmetic number, because the mean of its divisors is an integer number (5813611713).

Almost surely, 2^23155068641 is an apocalyptic number.

It is an amenable number.

23155068641 is a deficient number, since it is larger than the sum of its proper divisors (99378211).

23155068641 is an equidigital number, since it uses as much as digits as its factorization.

23155068641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99378210.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 23155068641 in words is "twenty-three billion, one hundred fifty-five million, sixty-eight thousand, six hundred forty-one".