23037165605 has 4 divisors (see below), whose sum is σ = 27644598732. Its totient is φ = 18429732480.

The previous prime is 23037165521. The next prime is 23037165629. The reversal of 23037165605 is 50656173032.

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 2448072484 + 20589093121 = 49478^2 + 143489^2 .

It is not a de Polignac number, because 23037165605 - 2¹² = 23037161509 is a prime.

It is a super-2 number, since 2×23037165605² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2303716556 + ... + 2303716565.

It is an arithmetic number, because the mean of its divisors is an integer number (6911149683).

Almost surely, 2^23037165605 is an apocalyptic number.

It is an amenable number.

23037165605 is a deficient number, since it is larger than the sum of its proper divisors (4607433127).

23037165605 is an equidigital number, since it uses as much as digits as its factorization.

23037165605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4607433126.

The product of its (nonzero) digits is 113400, while the sum is 38.

The spelling of 23037165605 in words is "twenty-three billion, thirty-seven million, one hundred sixty-five thousand, six hundred five".