161847638455422 has 16 divisors (see below), whose sum is σ = 323820111217680. Its totient is φ = 53928407100672.

The previous prime is 161847638455417. The next prime is 161847638455441. The reversal of 161847638455422 is 224554836748161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5201412597 + ... + 5201443712.

It is an arithmetic number, because the mean of its divisors is an integer number (20238756951105).

Almost surely, 2^{161847638455422} is an apocalyptic number.

161847638455422 is an abundant number, since it is smaller than the sum of its proper divisors (161972472762258).

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

161847638455422 is a wasteful number, since it uses less digits than its factorization.

161847638455422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10402858907.

The product of its digits is 309657600, while the sum is 66.

The spelling of 161847638455422 in words is "one hundred sixty-one trillion, eight hundred forty-seven billion, six hundred thirty-eight million, four hundred fifty-five thousand, four hundred twenty-two".