23106791065 has 4 divisors (see below), whose sum is σ = 27728149284. Its totient is φ = 18485432848.

The previous prime is 23106791063. The next prime is 23106791069. The reversal of 23106791065 is 56019760132.

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 11839180864 + 11267610201 = 108808^2 + 106149^2 .

It is a cyclic number.

It is not a de Polignac number, because 23106791065 - 2¹ = 23106791063 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23106791063) 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, 2310679102 + ... + 2310679111.

It is an arithmetic number, because the mean of its divisors is an integer number (6932037321).

Almost surely, 2^23106791065 is an apocalyptic number.

It is an amenable number.

23106791065 is a deficient number, since it is larger than the sum of its proper divisors (4621358219).

23106791065 is an equidigital number, since it uses as much as digits as its factorization.

23106791065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4621358218.

The product of its (nonzero) digits is 68040, while the sum is 40.

The spelling of 23106791065 in words is "twenty-three billion, one hundred six million, seven hundred ninety-one thousand, sixty-five".