2185620338585 has 8 divisors (see below), whose sum is σ = 2623191474816. Its totient is φ = 1748198225200.

The previous prime is 2185620338579. The next prime is 2185620338591. The reversal of 2185620338585 is 5858330265812.

It is an interprime number because it is at equal distance from previous prime (2185620338579) and next prime (2185620338591).

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

It is not a de Polignac number, because 2185620338585 - 2⁴ = 2185620338569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2185620338585.

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, 37223441 + ... + 37282110.

It is an arithmetic number, because the mean of its divisors is an integer number (327898934352).

Almost surely, 2^{2185620338585} is an apocalyptic number.

It is an amenable number.

2185620338585 is a deficient number, since it is larger than the sum of its proper divisors (437571136231).

2185620338585 is an equidigital number, since it uses as much as digits as its factorization.

2185620338585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74511423.

The product of its (nonzero) digits is 13824000, while the sum is 56.

The spelling of 2185620338585 in words is "two trillion, one hundred eighty-five billion, six hundred twenty million, three hundred thirty-eight thousand, five hundred eighty-five".