66339828595 has 4 divisors (see below), whose sum is σ = 79607794320. Its totient is φ = 53071862872.

The previous prime is 66339828589. The next prime is 66339828619. The reversal of 66339828595 is 59582893366.

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 66339828595 - 2²¹ = 66337731443 is a prime.

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, 6633982855 + ... + 6633982864.

It is an arithmetic number, because the mean of its divisors is an integer number (19901948580).

Almost surely, 2^66339828595 is an apocalyptic number.

66339828595 is a deficient number, since it is larger than the sum of its proper divisors (13267965725).

66339828595 is a wasteful number, since it uses less digits than its factorization.

66339828595 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13267965724.

The product of its digits is 83980800, while the sum is 64.

The spelling of 66339828595 in words is "sixty-six billion, three hundred thirty-nine million, eight hundred twenty-eight thousand, five hundred ninety-five".