20722148989068 has 96 divisors (see below), whose sum is σ = 50768708981760. Its totient is φ = 6569976824320.

The previous prime is 20722148989001. The next prime is 20722148989079. The reversal of 20722148989068 is 86098984122702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4586605 + ... + 7904507.

It is an arithmetic number, because the mean of its divisors is an integer number (528840718560).

Almost surely, 2^{20722148989068} 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 20722148989068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25384354490880).

20722148989068 is an abundant number, since it is smaller than the sum of its proper divisors (30046559992692).

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

20722148989068 is a wasteful number, since it uses less digits than its factorization.

20722148989068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3318207 (or 3318205 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 66.

The spelling of 20722148989068 in words is "twenty trillion, seven hundred twenty-two billion, one hundred forty-eight million, nine hundred eighty-nine thousand, sixty-eight".