38605561501165 has 4 divisors (see below), whose sum is σ = 46326673801404. Its totient is φ = 30884449200928.

The previous prime is 38605561501147. The next prime is 38605561501187. The reversal of 38605561501165 is 56110516550683.

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 10356740439721 + 28248821061444 = 3218189^2 + 5314962^2 .

It is a cyclic number.

It is not a de Polignac number, because 38605561501165 - 2²³ = 38605553112557 is a prime.

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, 3860556150112 + ... + 3860556150121.

It is an arithmetic number, because the mean of its divisors is an integer number (11581668450351).

Almost surely, 2^{38605561501165} is an apocalyptic number.

It is an amenable number.

38605561501165 is a deficient number, since it is larger than the sum of its proper divisors (7721112300239).

38605561501165 is an equidigital number, since it uses as much as digits as its factorization.

38605561501165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7721112300238.

The product of its (nonzero) digits is 3240000, while the sum is 52.

The spelling of 38605561501165 in words is "thirty-eight trillion, six hundred five billion, five hundred sixty-one million, five hundred one thousand, one hundred sixty-five".