161013260 has 12 divisors (see below), whose sum is σ = 338127888. Its totient is φ = 64405296.

The previous prime is 161013257. The next prime is 161013269. The reversal of 161013260 is 62310161.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 8050663 = 161013260 / (1 + 6 + 1 + 0 + 1 + 3 + 2 + 6 + 0).

It is not an unprimeable number, because it can be changed into a prime (161013269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4025312 + ... + 4025351.

It is an arithmetic number, because the mean of its divisors is an integer number (28177324).

Almost surely, 2^161013260 is an apocalyptic number.

161013260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161013260 is an abundant number, since it is smaller than the sum of its proper divisors (177114628).

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

161013260 is a wasteful number, since it uses less digits than its factorization.

161013260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8050672 (or 8050670 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 161013260 is about 12689.1000468906. The cubic root of 161013260 is about 544.0271171243.

The spelling of 161013260 in words is "one hundred sixty-one million, thirteen thousand, two hundred sixty".