2164332225138 has 16 divisors (see below), whose sum is σ = 4329081153216. Its totient is φ = 721374624560.

The previous prime is 2164332225119. The next prime is 2164332225173. The reversal of 2164332225138 is 8315222334612.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2164332225138.

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, 17295081 + ... + 17419772.

It is an arithmetic number, because the mean of its divisors is an integer number (270567572076).

Almost surely, 2^{2164332225138} is an apocalyptic number.

2164332225138 is an abundant number, since it is smaller than the sum of its proper divisors (2164748928078).

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

2164332225138 is a wasteful number, since it uses less digits than its factorization.

2164332225138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34725249.

The product of its digits is 414720, while the sum is 42.

The spelling of 2164332225138 in words is "two trillion, one hundred sixty-four billion, three hundred thirty-two million, two hundred twenty-five thousand, one hundred thirty-eight".