161014580 has 12 divisors (see below), whose sum is σ = 338130660. Its totient is φ = 64405824.

The previous prime is 161014573. The next prime is 161014591. The reversal of 161014580 is 85410161.

It can be written as a sum of positive squares in 2 ways, for example, as 29637136 + 131377444 = 5444^2 + 11462^2 .

It is a congruent number.

It is an unprimeable number.

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, 4025345 + ... + 4025384.

It is an arithmetic number, because the mean of its divisors is an integer number (28177555).

Almost surely, 2^161014580 is an apocalyptic number.

161014580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161014580 is an abundant number, since it is smaller than the sum of its proper divisors (177116080).

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

161014580 is a wasteful number, since it uses less digits than its factorization.

161014580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8050738 (or 8050736 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 161014580 is about 12689.1520599290. The cubic root of 161014580 is about 544.0286037800.

The spelling of 161014580 in words is "one hundred sixty-one million, fourteen thousand, five hundred eighty".