20830724042185 has 16 divisors (see below), whose sum is σ = 25065838656000. Its totient is φ = 16618602476736.

The previous prime is 20830724042159. The next prime is 20830724042209. The reversal of 20830724042185 is 58124042703802.

It is a cyclic number.

It is not a de Polignac number, because 20830724042185 - 2²⁵ = 20830690487753 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58172671 + ... + 58529659.

It is an arithmetic number, because the mean of its divisors is an integer number (1566614916000).

Almost surely, 2^{20830724042185} is an apocalyptic number.

It is an amenable number.

20830724042185 is a deficient number, since it is larger than the sum of its proper divisors (4235114613815).

20830724042185 is a wasteful number, since it uses less digits than its factorization.

20830724042185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389160.

The product of its (nonzero) digits is 860160, while the sum is 46.

Adding to 20830724042185 its reverse (58124042703802), we get a palindrome (78954766745987).

The spelling of 20830724042185 in words is "twenty trillion, eight hundred thirty billion, seven hundred twenty-four million, forty-two thousand, one hundred eighty-five".