2165522303000 has 128 divisors (see below), whose sum is σ = 5820626148480. Its totient is φ = 738695462400.

The previous prime is 2165522302949. The next prime is 2165522303023. The reversal of 2165522303000 is 3032255612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 593822 + ... + 2164178.

It is an arithmetic number, because the mean of its divisors is an integer number (45473641785).

Almost surely, 2^{2165522303000} is an apocalyptic number.

2165522303000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2165522303000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2910313074240).

2165522303000 is an abundant number, since it is smaller than the sum of its proper divisors (3655103845480).

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

2165522303000 is a wasteful number, since it uses less digits than its factorization.

2165522303000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570582 (or 1570568 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 2165522303000 its reverse (3032255612), we get a palindrome (2168554558612).

The spelling of 2165522303000 in words is "two trillion, one hundred sixty-five billion, five hundred twenty-two million, three hundred three thousand".