20582020185 has 24 divisors (see below), whose sum is σ = 33998640384. Its totient is φ = 10621381440.

The previous prime is 20582020169. The next prime is 20582020231. The reversal of 20582020185 is 58102028502.

It is not a de Polignac number, because 20582020185 - 2⁴ = 20582020169 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3090319 + ... + 3096971.

It is an arithmetic number, because the mean of its divisors is an integer number (1416610016).

Almost surely, 2^20582020185 is an apocalyptic number.

It is an amenable number.

20582020185 is a deficient number, since it is larger than the sum of its proper divisors (13416620199).

20582020185 is an frugal number, since it uses more digits than its factorization.

20582020185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13345 (or 6692 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 33.

Adding to 20582020185 its reverse (58102028502), we get a palindrome (78684048687).

The spelling of 20582020185 in words is "twenty billion, five hundred eighty-two million, twenty thousand, one hundred eighty-five".