2161080132 has 12 divisors (see below), whose sum is σ = 5042520336. Its totient is φ = 720360040.

The previous prime is 2161080079. The next prime is 2161080149. The reversal of 2161080132 is 2310801612.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90044994 + ... + 90045017.

It is an arithmetic number, because the mean of its divisors is an integer number (420210028).

Almost surely, 2^2161080132 is an apocalyptic number.

It is an amenable number.

2161080132 is an abundant number, since it is smaller than the sum of its proper divisors (2881440204).

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

2161080132 is a wasteful number, since it uses less digits than its factorization.

2161080132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180090018 (or 180090016 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 2161080132 is about 46487.4190722608. The cubic root of 2161080132 is about 1292.8762479141.

Adding to 2161080132 its reverse (2310801612), we get a palindrome (4471881744).

The spelling of 2161080132 in words is "two billion, one hundred sixty-one million, eighty thousand, one hundred thirty-two".