2120676165 has 24 divisors (see below), whose sum is σ = 3869305440. Its totient is φ = 1071499104.

The previous prime is 2120676149. The next prime is 2120676191. The reversal of 2120676165 is 5616760212.

It is a happy number.

It is not a de Polignac number, because 2120676165 - 2⁴ = 2120676149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1239307 + ... + 1241016.

It is an arithmetic number, because the mean of its divisors is an integer number (161221060).

Almost surely, 2^2120676165 is an apocalyptic number.

It is an amenable number.

2120676165 is a deficient number, since it is larger than the sum of its proper divisors (1748629275).

2120676165 is a wasteful number, since it uses less digits than its factorization.

2120676165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480353 (or 2480350 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 2120676165 is about 46050.7998301875. The cubic root of 2120676165 is about 1284.7682191328.

The spelling of 2120676165 in words is "two billion, one hundred twenty million, six hundred seventy-six thousand, one hundred sixty-five".