2165573132 has 24 divisors (see below), whose sum is σ = 3835756176. Its totient is φ = 1069705728.

The previous prime is 2165573117. The next prime is 2165573143. The reversal of 2165573132 is 2313755612.

It is a junction number, because it is equal to n+sod(n) for n = 2165573092 and 2165573101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133823 + ... + 149129.

It is an arithmetic number, because the mean of its divisors is an integer number (159823174).

Almost surely, 2^2165573132 is an apocalyptic number.

It is an amenable number.

2165573132 is a deficient number, since it is larger than the sum of its proper divisors (1670183044).

2165573132 is a wasteful number, since it uses less digits than its factorization.

2165573132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15737 (or 15735 counting only the distinct ones).

The product of its digits is 37800, while the sum is 35.

The square root of 2165573132 is about 46535.7188834555. The cubic root of 2165573132 is about 1293.7716137505.

The spelling of 2165573132 in words is "two billion, one hundred sixty-five million, five hundred seventy-three thousand, one hundred thirty-two".