20365818582 has 16 divisors (see below), whose sum is σ = 41127091200. Its totient is φ = 6722697192.

The previous prime is 20365818463. The next prime is 20365818589. The reversal of 20365818582 is 28581856302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20365818589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16476582 + ... + 16477817.

It is an arithmetic number, because the mean of its divisors is an integer number (2570443200).

Almost surely, 2^20365818582 is an apocalyptic number.

20365818582 is an abundant number, since it is smaller than the sum of its proper divisors (20761272618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20365818582 is a wasteful number, since it uses less digits than its factorization.

20365818582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32954507.

The product of its (nonzero) digits is 921600, while the sum is 48.

The spelling of 20365818582 in words is "twenty billion, three hundred sixty-five million, eight hundred eighteen thousand, five hundred eighty-two".