161309468384 has 24 divisors (see below), whose sum is σ = 317586997728. Its totient is φ = 80652453120.

The previous prime is 161309468339. The next prime is 161309468387. The reversal of 161309468384 is 483864903161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161309468387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2038649 + ... + 2116295.

It is an arithmetic number, because the mean of its divisors is an integer number (13232791572).

Almost surely, 2^161309468384 is an apocalyptic number.

It is an amenable number.

161309468384 is a deficient number, since it is larger than the sum of its proper divisors (156277529344).

161309468384 is an equidigital number, since it uses as much as digits as its factorization.

161309468384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142578 (or 142570 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 53.

The spelling of 161309468384 in words is "one hundred sixty-one billion, three hundred nine million, four hundred sixty-eight thousand, three hundred eighty-four".