66000274339 has 4 divisors (see below), whose sum is σ = 66059046856. Its totient is φ = 65941501824.

The previous prime is 66000274261. The next prime is 66000274367. The reversal of 66000274339 is 93347200066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66000274339 - 2¹⁹ = 65999750051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66000271339) 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, 29384574 + ... + 29386819.

It is an arithmetic number, because the mean of its divisors is an integer number (16514761714).

Almost surely, 2^66000274339 is an apocalyptic number.

66000274339 is a deficient number, since it is larger than the sum of its proper divisors (58772517).

66000274339 is a wasteful number, since it uses less digits than its factorization.

66000274339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58772516.

The product of its (nonzero) digits is 163296, while the sum is 40.

The spelling of 66000274339 in words is "sixty-six billion, two hundred seventy-four thousand, three hundred thirty-nine".