20026403712 has 768 divisors, whose sum is σ = 74137190400. Its totient is φ = 5253838848.

The previous prime is 20026403659. The next prime is 20026403729. The reversal of 20026403712 is 21730462002.

20026403712 is a `hidden beast` number, since 2 + 0 + 0 + 2 + 640 + 3 + 7 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 194431053 + ... + 194431155.

It is an arithmetic number, because the mean of its divisors is an integer number (96532800).

Almost surely, 2^20026403712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20026403712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37068595200).

20026403712 is an abundant number, since it is smaller than the sum of its proper divisors (54110786688).

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

20026403712 is a wasteful number, since it uses less digits than its factorization.

20026403712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

Adding to 20026403712 its reverse (21730462002), we get a palindrome (41756865714).

The spelling of 20026403712 in words is "twenty billion, twenty-six million, four hundred three thousand, seven hundred twelve".