161046180 has 72 divisors (see below), whose sum is σ = 499891392. Its totient is φ = 41944896.

The previous prime is 161046173. The next prime is 161046187. The reversal of 161046180 is 81640161.

161046180 is a `hidden beast` number, since 1 + 610 + 46 + 1 + 8 + 0 = 666.

161046180 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (161046173) and next prime (161046187).

It is not an unprimeable number, because it can be changed into a prime (161046187) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2664 + ... + 18143.

It is an arithmetic number, because the mean of its divisors is an integer number (6942936).

Almost surely, 2^161046180 is an apocalyptic number.

161046180 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 161046180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249945696).

161046180 is an abundant number, since it is smaller than the sum of its proper divisors (338845212).

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

161046180 is a wasteful number, since it uses less digits than its factorization.

161046180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20865 (or 20860 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 161046180 is about 12690.3971569057. The cubic root of 161046180 is about 544.0641909907.

The spelling of 161046180 in words is "one hundred sixty-one million, forty-six thousand, one hundred eighty".