161359744 has 96 divisors (see below), whose sum is σ = 402910200. Its totient is φ = 63802368.

The previous prime is 161359727. The next prime is 161359753. The reversal of 161359744 is 447953161.

It is a junction number, because it is equal to n+sod(n) for n = 161359697 and 161359706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80547 + ... + 82525.

Almost surely, 2^161359744 is an apocalyptic number.

161359744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161359744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201455100).

161359744 is an abundant number, since it is smaller than the sum of its proper divisors (241550456).

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

161359744 is a wasteful number, since it uses less digits than its factorization.

161359744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020 (or 2001 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 161359744 is about 12702.7455300026. The cubic root of 161359744 is about 544.4170677088.

The spelling of 161359744 in words is "one hundred sixty-one million, three hundred fifty-nine thousand, seven hundred forty-four".