161727735344 has 20 divisors (see below), whose sum is σ = 358111414224. Its totient is φ = 69311886528.

The previous prime is 161727735331. The next prime is 161727735391. The reversal of 161727735344 is 443537727161.

161727735344 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 161727735292 and 161727735301.

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, 721998707 + ... + 721998930.

Almost surely, 2^161727735344 is an apocalyptic number.

161727735344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

161727735344 is an abundant number, since it is smaller than the sum of its proper divisors (196383678880).

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

161727735344 is a wasteful number, since it uses less digits than its factorization.

161727735344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443997652 (or 1443997646 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 50.

The spelling of 161727735344 in words is "one hundred sixty-one billion, seven hundred twenty-seven million, seven hundred thirty-five thousand, three hundred forty-four".