2185090202816 has 112 divisors (see below), whose sum is σ = 4608942735360. Its totient is φ = 1026026818560.

The previous prime is 2185090202797. The next prime is 2185090202819. The reversal of 2185090202816 is 6182020905812.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (2185090202819) 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, 28076405 + ... + 28154123.

Almost surely, 2^{2185090202816} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2185090202816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2304471367680).

2185090202816 is an abundant number, since it is smaller than the sum of its proper divisors (2423852532544).

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

2185090202816 is a wasteful number, since it uses less digits than its factorization.

2185090202816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78182 (or 78172 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 44.

The spelling of 2185090202816 in words is "two trillion, one hundred eighty-five billion, ninety million, two hundred two thousand, eight hundred sixteen".