65665071022 has 16 divisors (see below), whose sum is σ = 99737850240. Its totient is φ = 32419545912.

The previous prime is 65665071019. The next prime is 65665071067. The reversal of 65665071022 is 22017056656.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206653 + ... + 417175.

It is an arithmetic number, because the mean of its divisors is an integer number (6233615640).

Almost surely, 2^65665071022 is an apocalyptic number.

65665071022 is a deficient number, since it is larger than the sum of its proper divisors (34072779218).

65665071022 is a wasteful number, since it uses less digits than its factorization.

65665071022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212487.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 65665071022 in words is "sixty-five billion, six hundred sixty-five million, seventy-one thousand, twenty-two".