161160560 has 80 divisors (see below), whose sum is σ = 418366080. Its totient is φ = 57227520.

The previous prime is 161160551. The next prime is 161160589. The reversal of 161160560 is 65061161.

161160560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35711 + ... + 39969.

It is an arithmetic number, because the mean of its divisors is an integer number (5229576).

Almost surely, 2^161160560 is an apocalyptic number.

161160560 is a gapful number since it is divisible by the number (10) 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 161160560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209183040).

161160560 is an abundant number, since it is smaller than the sum of its proper divisors (257205520).

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

161160560 is a wasteful number, since it uses less digits than its factorization.

161160560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4326 (or 4320 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 161160560 is about 12694.9029141620. The cubic root of 161160560 is about 544.1929642726.

The spelling of 161160560 in words is "one hundred sixty-one million, one hundred sixty thousand, five hundred sixty".