161372822938 has 8 divisors (see below), whose sum is σ = 242088919380. Its totient is φ = 80676516480.

The previous prime is 161372822917. The next prime is 161372822953. The reversal of 161372822938 is 839228273161.

It is a happy number.

161372822938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 161349232489 + 23590449 = 401683^2 + 4857^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4927093 + ... + 4959736.

Almost surely, 2^161372822938 is an apocalyptic number.

161372822938 is a deficient number, since it is larger than the sum of its proper divisors (80716096442).

161372822938 is an equidigital number, since it uses as much as digits as its factorization.

161372822938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9894992.

The product of its digits is 1741824, while the sum is 52.

The spelling of 161372822938 in words is "one hundred sixty-one billion, three hundred seventy-two million, eight hundred twenty-two thousand, nine hundred thirty-eight".