20800248006 has 16 divisors (see below), whose sum is σ = 41614123248. Its totient is φ = 6931144800.

The previous prime is 20800247953. The next prime is 20800248011. The reversal of 20800248006 is 60084200802.

It is a happy number.

It is a super-2 number, since 2×20800248006² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547905 + ... + 584636.

It is an arithmetic number, because the mean of its divisors is an integer number (2600882703).

Almost surely, 2^20800248006 is an apocalyptic number.

20800248006 is an abundant number, since it is smaller than the sum of its proper divisors (20813875242).

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

20800248006 is a wasteful number, since it uses less digits than its factorization.

20800248006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135607.

The product of its (nonzero) digits is 6144, while the sum is 30.

Adding to 20800248006 its reverse (60084200802), we get a palindrome (80884448808).

The spelling of 20800248006 in words is "twenty billion, eight hundred million, two hundred forty-eight thousand, six".