66382365027 has 18 divisors (see below), whose sum is σ = 97294848196. Its totient is φ = 40228761320.

The previous prime is 66382364981. The next prime is 66382365037. The reversal of 66382365027 is 72056328366.

66382365027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-66382365027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66382365037) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4902088 + ... + 4915610.

Almost surely, 2^66382365027 is an apocalyptic number.

66382365027 is a deficient number, since it is larger than the sum of its proper divisors (30912483169).

66382365027 is an frugal number, since it uses more digits than its factorization.

66382365027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27071 (or 13537 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 48.

Multiplying 66382365027 by its sum of digits (48), we get a square (3186353521296 = 1785036²).

The spelling of 66382365027 in words is "sixty-six billion, three hundred eighty-two million, three hundred sixty-five thousand, twenty-seven".