20065570830585 has 48 divisors (see below), whose sum is σ = 39919536768384. Its totient is φ = 9133463966976.

The previous prime is 20065570830511. The next prime is 20065570830619. The reversal of 20065570830585 is 58503807556002.

It is a happy number.

20065570830585 is a `hidden beast` number, since 2 + 0 + 0 + 6 + 5 + 57 + 0 + 8 + 3 + 0 + 585 = 666.

It is not a de Polignac number, because 20065570830585 - 2¹⁷ = 20065570699513 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136622367 + ... + 136769156.

It is an arithmetic number, because the mean of its divisors is an integer number (831657016008).

Almost surely, 2^{20065570830585} is an apocalyptic number.

It is an amenable number.

20065570830585 is a deficient number, since it is larger than the sum of its proper divisors (19853965937799).

20065570830585 is a wasteful number, since it uses less digits than its factorization.

20065570830585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273391774 (or 273391771 counting only the distinct ones).

The product of its (nonzero) digits is 10080000, while the sum is 54.

The spelling of 20065570830585 in words is "twenty trillion, sixty-five billion, five hundred seventy million, eight hundred thirty thousand, five hundred eighty-five".