65678332568 has 16 divisors (see below), whose sum is σ = 123352470000. Its totient is φ = 32784340576.

The previous prime is 65678332537. The next prime is 65678332579. The reversal of 65678332568 is 86523387656.

It is a congruent number.

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, 6848123 + ... + 6857706.

It is an arithmetic number, because the mean of its divisors is an integer number (7709529375).

Almost surely, 2^65678332568 is an apocalyptic number.

It is an amenable number.

65678332568 is a deficient number, since it is larger than the sum of its proper divisors (57674137432).

65678332568 is a wasteful number, since it uses less digits than its factorization.

65678332568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13706434 (or 13706430 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 59.

The spelling of 65678332568 in words is "sixty-five billion, six hundred seventy-eight million, three hundred thirty-two thousand, five hundred sixty-eight".