27066137065 has 48 divisors (see below), whose sum is σ = 36656028864. Its totient is φ = 19017820800.

The previous prime is 27066137047. The next prime is 27066137069. The reversal of 27066137065 is 56073166072.

It is not a de Polignac number, because 27066137065 - 2²³ = 27057748457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27066137069) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78000222 + ... + 78000568.

It is an arithmetic number, because the mean of its divisors is an integer number (763667268).

Almost surely, 2^27066137065 is an apocalyptic number.

It is an amenable number.

27066137065 is a deficient number, since it is larger than the sum of its proper divisors (9589891799).

27066137065 is an equidigital number, since it uses as much as digits as its factorization.

27066137065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 43.

The spelling of 27066137065 in words is "twenty-seven billion, sixty-six million, one hundred thirty-seven thousand, sixty-five".