161353253366 has 32 divisors (see below), whose sum is σ = 254665064448. Its totient is φ = 76524164640.

The previous prime is 161353253359. The next prime is 161353253387. The reversal of 161353253366 is 663352353161.

161353253366 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 14850776 + ... + 14861636.

It is an arithmetic number, because the mean of its divisors is an integer number (7958283264).

Almost surely, 2^161353253366 is an apocalyptic number.

161353253366 is a deficient number, since it is larger than the sum of its proper divisors (93311811082).

161353253366 is a wasteful number, since it uses less digits than its factorization.

161353253366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13556.

The product of its digits is 874800, while the sum is 44.

The spelling of 161353253366 in words is "one hundred sixty-one billion, three hundred fifty-three million, two hundred fifty-three thousand, three hundred sixty-six".