365605122818 has 48 divisors (see below), whose sum is σ = 595685291040. Its totient is φ = 168216901632.

The previous prime is 365605122811. The next prime is 365605122821. The reversal of 365605122818 is 818221506563.

It is a super-2 number, since 2×365605122818² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (365605122811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 250585373 + ... + 250586831.

It is an arithmetic number, because the mean of its divisors is an integer number (12410110230).

Almost surely, 2^365605122818 is an apocalyptic number.

365605122818 is a deficient number, since it is larger than the sum of its proper divisors (230080168222).

365605122818 is a wasteful number, since it uses less digits than its factorization.

365605122818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3283 (or 3270 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 365605122818 in words is "three hundred sixty-five billion, six hundred five million, one hundred twenty-two thousand, eight hundred eighteen".