2165045057312 has 12 divisors (see below), whose sum is σ = 4262432456646. Its totient is φ = 1082522528640.

The previous prime is 2165045057299. The next prime is 2165045057327. The reversal of 2165045057312 is 2137505405612.

It can be written as a sum of positive squares in only one way, i.e., 1808067486736 + 356977570576 = 1344644^2 + 597476^2 .

It is a super-2 number, since 2×2165045057312² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2165045057312.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33828828989 + ... + 33828829052.

Almost surely, 2^{2165045057312} is an apocalyptic number.

It is an amenable number.

2165045057312 is a deficient number, since it is larger than the sum of its proper divisors (2097387399334).

2165045057312 is an equidigital number, since it uses as much as digits as its factorization.

2165045057312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67657658051 (or 67657658043 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 2165045057312 in words is "two trillion, one hundred sixty-five billion, forty-five million, fifty-seven thousand, three hundred twelve".