2165256332 has 12 divisors (see below), whose sum is σ = 3837163680. Its totient is φ = 1068923856.

The previous prime is 2165256251. The next prime is 2165256343. The reversal of 2165256332 is 2336525612.

It is a junction number, because it is equal to n+sod(n) for n = 2165256292 and 2165256301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3425723 + ... + 3426354.

It is an arithmetic number, because the mean of its divisors is an integer number (319763640).

Almost surely, 2^2165256332 is an apocalyptic number.

It is an amenable number.

2165256332 is a deficient number, since it is larger than the sum of its proper divisors (1671907348).

2165256332 is a wasteful number, since it uses less digits than its factorization.

2165256332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6852160 (or 6852158 counting only the distinct ones).

The product of its digits is 64800, while the sum is 35.

The square root of 2165256332 is about 46532.3149219980. The cubic root of 2165256332 is about 1293.7085223946.

The spelling of 2165256332 in words is "two billion, one hundred sixty-five million, two hundred fifty-six thousand, three hundred thirty-two".