65066474439 has 6 divisors (see below), whose sum is σ = 93984907536. Its totient is φ = 43377649620.

The previous prime is 65066474423. The next prime is 65066474449. The reversal of 65066474439 is 93447466056.

It is a happy number.

65066474439 is a `hidden beast` number, since 6 + 506 + 64 + 7 + 44 + 39 = 666.

It is not a de Polignac number, because 65066474439 - 2⁴ = 65066474423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65066474449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3614804127 + ... + 3614804144.

It is an arithmetic number, because the mean of its divisors is an integer number (15664151256).

Almost surely, 2^65066474439 is an apocalyptic number.

65066474439 is a deficient number, since it is larger than the sum of its proper divisors (28918433097).

65066474439 is a wasteful number, since it uses less digits than its factorization.

65066474439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7229608277 (or 7229608274 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 54.

The spelling of 65066474439 in words is "sixty-five billion, sixty-six million, four hundred seventy-four thousand, four hundred thirty-nine".