162722221256 has 64 divisors (see below), whose sum is σ = 370786740480. Its totient is φ = 65354065920.

The previous prime is 162722221247. The next prime is 162722221327. The reversal of 162722221256 is 652122227261.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144980 + ... + 588611.

It is an arithmetic number, because the mean of its divisors is an integer number (5793542820).

Almost surely, 2^162722221256 is an apocalyptic number.

It is an amenable number.

162722221256 is an abundant number, since it is smaller than the sum of its proper divisors (208064519224).

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

162722221256 is a wasteful number, since it uses less digits than its factorization.

162722221256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733854 (or 733850 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The spelling of 162722221256 in words is "one hundred sixty-two billion, seven hundred twenty-two million, two hundred twenty-one thousand, two hundred fifty-six".