2165073650 has 48 divisors (see below), whose sum is σ = 4129744608. Its totient is φ = 844032000.

The previous prime is 2165073553. The next prime is 2165073667. The reversal of 2165073650 is 563705612.

It is a self number, because there is not a number n which added to its sum of digits gives 2165073650.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1377365 + ... + 1378935.

It is an arithmetic number, because the mean of its divisors is an integer number (86036346).

Almost surely, 2^2165073650 is an apocalyptic number.

2165073650 is a deficient number, since it is larger than the sum of its proper divisors (1964670958).

2165073650 is a wasteful number, since it uses less digits than its factorization.

2165073650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267 (or 2262 counting only the distinct ones).

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

The square root of 2165073650 is about 46530.3519221594. The cubic root of 2165073650 is about 1293.6721381101.

The spelling of 2165073650 in words is "two billion, one hundred sixty-five million, seventy-three thousand, six hundred fifty".