2165199260966 has 16 divisors (see below), whose sum is σ = 3717454358304. Its totient is φ = 926521491264.

The previous prime is 2165199260963. The next prime is 2165199260989. The reversal of 2165199260966 is 6690629915612.

It is a junction number, because it is equal to n+sod(n) for n = 2165199260899 and 2165199260908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165199260963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118411295 + ... + 118429578.

It is an arithmetic number, because the mean of its divisors is an integer number (232340897394).

Almost surely, 2^{2165199260966} is an apocalyptic number.

2165199260966 is a deficient number, since it is larger than the sum of its proper divisors (1552255097338).

2165199260966 is a wasteful number, since it uses less digits than its factorization.

2165199260966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236841535.

The product of its (nonzero) digits is 18895680, while the sum is 62.

The spelling of 2165199260966 in words is "two trillion, one hundred sixty-five billion, one hundred ninety-nine million, two hundred sixty thousand, nine hundred sixty-six".