2165550552102 has 32 divisors (see below), whose sum is σ = 4949880360192. Its totient is φ = 618722413344.

The previous prime is 2165550552079. The next prime is 2165550552107. The reversal of 2165550552102 is 2012550555612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165550552107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5268088 + ... + 5664260.

It is an arithmetic number, because the mean of its divisors is an integer number (154683761256).

Almost surely, 2^{2165550552102} is an apocalyptic number.

2165550552102 is an abundant number, since it is smaller than the sum of its proper divisors (2784329808090).

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

2165550552102 is a wasteful number, since it uses less digits than its factorization.

2165550552102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526332.

The product of its (nonzero) digits is 150000, while the sum is 39.

The spelling of 2165550552102 in words is "two trillion, one hundred sixty-five billion, five hundred fifty million, five hundred fifty-two thousand, one hundred two".