20601004585 has 24 divisors (see below), whose sum is σ = 29684987136. Its totient is φ = 13670707680.

The previous prime is 20601004579. The next prime is 20601004597. The reversal of 20601004585 is 58540010602.

It is not a de Polignac number, because 20601004585 - 2³ = 20601004577 is a prime.

It is a super-2 number, since 2×20601004585² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1348627 + ... + 1363816.

It is an arithmetic number, because the mean of its divisors is an integer number (1236874464).

Almost surely, 2^20601004585 is an apocalyptic number.

It is an amenable number.

20601004585 is a deficient number, since it is larger than the sum of its proper divisors (9083982551).

20601004585 is a wasteful number, since it uses less digits than its factorization.

20601004585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2712493 (or 2712486 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The spelling of 20601004585 in words is "twenty billion, six hundred one million, four thousand, five hundred eighty-five".