665656352314422 has 32 divisors (see below), whose sum is σ = 1521598441005312. Its totient is φ = 190175253339744.

The previous prime is 665656352314397. The next prime is 665656352314441. The reversal of 665656352314422 is 224413253656566.

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 15 ways as a sum of consecutive naturals, for example, 510837088 + ... + 512138499.

It is an arithmetic number, because the mean of its divisors is an integer number (47549951281416).

Almost surely, 2^{665656352314422} is an apocalyptic number.

665656352314422 is an abundant number, since it is smaller than the sum of its proper divisors (855942088690890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

665656352314422 is a wasteful number, since it uses less digits than its factorization.

665656352314422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022991092.

The product of its digits is 186624000, while the sum is 60.

The spelling of 665656352314422 in words is "six hundred sixty-five trillion, six hundred fifty-six billion, three hundred fifty-two million, three hundred fourteen thousand, four hundred twenty-two".