18660222152275 has 24 divisors (see below), whose sum is σ = 25492114145808. Its totient is φ = 13436703600000.

The previous prime is 18660222152267. The next prime is 18660222152293. The reversal of 18660222152275 is 57225122206681.

It is not a de Polignac number, because 18660222152275 - 2³ = 18660222152267 is a prime.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 335889816 + ... + 335945365.

It is an arithmetic number, because the mean of its divisors is an integer number (1062171422742).

Almost surely, 2^{18660222152275} is an apocalyptic number.

18660222152275 is a deficient number, since it is larger than the sum of its proper divisors (6831891993533).

18660222152275 is a wasteful number, since it uses less digits than its factorization.

18660222152275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671835303 (or 671835298 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 18660222152275 in words is "eighteen trillion, six hundred sixty billion, two hundred twenty-two million, one hundred fifty-two thousand, two hundred seventy-five".