665366361030522 has 16 divisors (see below), whose sum is σ = 1478591913401280. Its totient is φ = 221788787010156.

The previous prime is 665366361030463. The next prime is 665366361030529. The reversal of 665366361030522 is 225030163663566.

665366361030522 is a `hidden beast` number, since 6 + 6 + 5 + 3 + 6 + 6 + 3 + 6 + 103 + 0 + 522 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 12321599278343 = 665366361030522 / (6 + 6 + 5 + 3 + 6 + 6 + 3 + 6 + 1 + 0 + 3 + 0 + 5 + 2 + 2).

It is not an unprimeable number, because it can be changed into a prime (665366361030529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6160799639118 + ... + 6160799639225.

It is an arithmetic number, because the mean of its divisors is an integer number (92411994587580).

Almost surely, 2^{665366361030522} is an apocalyptic number.

665366361030522 is an abundant number, since it is smaller than the sum of its proper divisors (813225552370758).

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

665366361030522 is a wasteful number, since it uses less digits than its factorization.

665366361030522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12321599278354 (or 12321599278348 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 54.

The spelling of 665366361030522 in words is "six hundred sixty-five trillion, three hundred sixty-six billion, three hundred sixty-one million, thirty thousand, five hundred twenty-two".