20122896768 has 256 divisors, whose sum is σ = 60203908800. Its totient is φ = 5912395776.

The previous prime is 20122896721. The next prime is 20122896809. The reversal of 20122896768 is 86769822102.

It is a self number, because there is not a number n which added to its sum of digits gives 20122896768.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14041780 + ... + 14043212.

Almost surely, 2^20122896768 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 20122896768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30101954400).

20122896768 is an abundant number, since it is smaller than the sum of its proper divisors (40081012032).

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

20122896768 is a wasteful number, since it uses less digits than its factorization.

20122896768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589 (or 1577 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 20122896768 in words is "twenty billion, one hundred twenty-two million, eight hundred ninety-six thousand, seven hundred sixty-eight".