20772077196 has 192 divisors, whose sum is σ = 55019865600. Its totient is φ = 6055440384.

The previous prime is 20772077149. The next prime is 20772077197. The reversal of 20772077196 is 69177027702.

It is not an unprimeable number, because it can be changed into a prime (20772077197) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 91506835 + ... + 91507061.

It is an arithmetic number, because the mean of its divisors is an integer number (286561800).

Almost surely, 2^20772077196 is an apocalyptic number.

20772077196 is a gapful number since it is divisible by the number (26) 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 20772077196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27509932800).

20772077196 is an abundant number, since it is smaller than the sum of its proper divisors (34247788404).

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

20772077196 is a wasteful number, since it uses less digits than its factorization.

20772077196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568 (or 566 counting only the distinct ones).

The product of its (nonzero) digits is 518616, while the sum is 48.

The spelling of 20772077196 in words is "twenty billion, seven hundred seventy-two million, seventy-seven thousand, one hundred ninety-six".