2163383857585 has 8 divisors (see below), whose sum is σ = 2685579961320. Its totient is φ = 1671027531264.

The previous prime is 2163383857571. The next prime is 2163383857633. The reversal of 2163383857585 is 5857583833612.

It can be written as a sum of positive squares in 4 ways, for example, as 306070071696 + 1857313785889 = 553236^2 + 1362833^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2163383857585 - 2³⁹ = 1613628043697 is a prime.

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, 7459944192 + ... + 7459944481.

It is an arithmetic number, because the mean of its divisors is an integer number (335697495165).

Almost surely, 2^{2163383857585} is an apocalyptic number.

It is an amenable number.

2163383857585 is a deficient number, since it is larger than the sum of its proper divisors (522196103735).

2163383857585 is a wasteful number, since it uses less digits than its factorization.

2163383857585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14919888707.

The product of its digits is 145152000, while the sum is 64.

The spelling of 2163383857585 in words is "two trillion, one hundred sixty-three billion, three hundred eighty-three million, eight hundred fifty-seven thousand, five hundred eighty-five".