2185090202815 has 8 divisors (see below), whose sum is σ = 2823808877568. Its totient is φ = 1613605072800.

The previous prime is 2185090202797. The next prime is 2185090202819. The reversal of 2185090202815 is 5182020905812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2185090202815 - 2²³ = 2185081814207 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 16808386111 + ... + 16808386240.

It is an arithmetic number, because the mean of its divisors is an integer number (352976109696).

Almost surely, 2^{2185090202815} is an apocalyptic number.

2185090202815 is a deficient number, since it is larger than the sum of its proper divisors (638718674753).

2185090202815 is a wasteful number, since it uses less digits than its factorization.

2185090202815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33616772369.

The product of its (nonzero) digits is 115200, while the sum is 43.

The spelling of 2185090202815 in words is "two trillion, one hundred eighty-five billion, ninety million, two hundred two thousand, eight hundred fifteen".