20722796192 has 36 divisors (see below), whose sum is σ = 47458907370. Its totient is φ = 8881197696.

The previous prime is 20722796183. The next prime is 20722796209. The reversal of 20722796192 is 29169722702.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17340675856 + 3382120336 = 131684^2 + 58156^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6606467 + ... + 6609602.

Almost surely, 2^20722796192 is an apocalyptic number.

It is an amenable number.

20722796192 is an abundant number, since it is smaller than the sum of its proper divisors (26736111178).

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

20722796192 is a wasteful number, since it uses less digits than its factorization.

20722796192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13216093 (or 13216078 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 20722796192 in words is "twenty billion, seven hundred twenty-two million, seven hundred ninety-six thousand, one hundred ninety-two".