20883320064 has 216 divisors, whose sum is σ = 64164364992. Its totient is φ = 6509445120.

The previous prime is 20883320011. The next prime is 20883320119. The reversal of 20883320064 is 46002338802.

It is a super-2 number, since 2×20883320064² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 6382749 + ... + 6386019.

Almost surely, 2^20883320064 is an apocalyptic number.

20883320064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20883320064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32082182496).

20883320064 is an abundant number, since it is smaller than the sum of its proper divisors (43281044928).

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

20883320064 is a wasteful number, since it uses less digits than its factorization.

20883320064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3473 (or 3456 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

Adding to 20883320064 its reverse (46002338802), we get a palindrome (66885658866).

The spelling of 20883320064 in words is "twenty billion, eight hundred eighty-three million, three hundred twenty thousand, sixty-four".