2165093039826 has 96 divisors (see below), whose sum is σ = 5044264243200. Its totient is φ = 668997934560.

The previous prime is 2165093039789. The next prime is 2165093039831. The reversal of 2165093039826 is 6289303905612.

2165093039826 is a `hidden beast` number, since 2 + 16 + 509 + 30 + 3 + 98 + 2 + 6 = 666.

It is a super-2 number, since 2×2165093039826² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73781065 + ... + 73810403.

It is an arithmetic number, because the mean of its divisors is an integer number (52544419200).

Almost surely, 2^{2165093039826} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2165093039826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2522132121600).

2165093039826 is an abundant number, since it is smaller than the sum of its proper divisors (2879171203374).

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

2165093039826 is a wasteful number, since it uses less digits than its factorization.

2165093039826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34004 (or 34001 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The spelling of 2165093039826 in words is "two trillion, one hundred sixty-five billion, ninety-three million, thirty-nine thousand, eight hundred twenty-six".