20593137585 has 16 divisors (see below), whose sum is σ = 33092907840. Its totient is φ = 10935044160.

The previous prime is 20593137491. The next prime is 20593137667. The reversal of 20593137585 is 58573139502.

It is not a de Polignac number, because 20593137585 - 2¹³ = 20593129393 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2994111 + ... + 3000980.

It is an arithmetic number, because the mean of its divisors is an integer number (2068306740).

Almost surely, 2^20593137585 is an apocalyptic number.

It is an amenable number.

20593137585 is a deficient number, since it is larger than the sum of its proper divisors (12499770255).

20593137585 is a wasteful number, since it uses less digits than its factorization.

20593137585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5995328.

The product of its (nonzero) digits is 1134000, while the sum is 48.

The spelling of 20593137585 in words is "twenty billion, five hundred ninety-three million, one hundred thirty-seven thousand, five hundred eighty-five".