2165236806124 has 24 divisors (see below), whose sum is σ = 4391466202368. Its totient is φ = 914888790480.

The previous prime is 2165236806059. The next prime is 2165236806143. The reversal of 2165236806124 is 4216086325612.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544574674 + ... + 544578649.

It is an arithmetic number, because the mean of its divisors is an integer number (182977758432).

Almost surely, 2^{2165236806124} is an apocalyptic number.

It is an amenable number.

2165236806124 is an abundant number, since it is smaller than the sum of its proper divisors (2226229396244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2165236806124 is a wasteful number, since it uses less digits than its factorization.

2165236806124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089153405 (or 1089153403 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 2165236806124 in words is "two trillion, one hundred sixty-five billion, two hundred thirty-six million, eight hundred six thousand, one hundred twenty-four".