165215611222 has 8 divisors (see below), whose sum is σ = 262401264936. Its totient is φ = 77748522912.

The previous prime is 165215611213. The next prime is 165215611261. The reversal of 165215611222 is 222116512561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 4859282683 = 165215611222 / (1 + 6 + 5 + 2 + 1 + 5 + 6 + 1 + 1 + 2 + 2 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2429641308 + ... + 2429641375.

It is an arithmetic number, because the mean of its divisors is an integer number (32800158117).

Almost surely, 2^165215611222 is an apocalyptic number.

165215611222 is a deficient number, since it is larger than the sum of its proper divisors (97185653714).

165215611222 is a wasteful number, since it uses less digits than its factorization.

165215611222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4859282702.

The product of its digits is 14400, while the sum is 34.

The spelling of 165215611222 in words is "one hundred sixty-five billion, two hundred fifteen million, six hundred eleven thousand, two hundred twenty-two".