161192733023 has 4 divisors (see below), whose sum is σ = 184220266320. Its totient is φ = 138165199728.

The previous prime is 161192732977. The next prime is 161192733047. The reversal of 161192733023 is 320337291161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161192733023 - 2¹⁶ = 161192667487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161192732023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11513766638 + ... + 11513766651.

It is an arithmetic number, because the mean of its divisors is an integer number (46055066580).

Almost surely, 2^161192733023 is an apocalyptic number.

161192733023 is a deficient number, since it is larger than the sum of its proper divisors (23027533297).

161192733023 is an equidigital number, since it uses as much as digits as its factorization.

161192733023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23027533296.

The product of its (nonzero) digits is 40824, while the sum is 38.

The spelling of 161192733023 in words is "one hundred sixty-one billion, one hundred ninety-two million, seven hundred thirty-three thousand, twenty-three".