20055772000 has 192 divisors, whose sum is σ = 54301036608. Its totient is φ = 7219200000.

The previous prime is 20055771979. The next prime is 20055772003. The reversal of 20055772000 is 27755002.

It is a self number, because there is not a number n which added to its sum of digits gives 20055772000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20055772003) by changing a digit.

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, 4441744 + ... + 4446256.

It is an arithmetic number, because the mean of its divisors is an integer number (282817899).

Almost surely, 2^20055772000 is an apocalyptic number.

20055772000 is a gapful number since it is divisible by the number (20) 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 20055772000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27150518304).

20055772000 is an abundant number, since it is smaller than the sum of its proper divisors (34245264608).

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

20055772000 is a wasteful number, since it uses less digits than its factorization.

20055772000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4650 (or 4632 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 28.

The spelling of 20055772000 in words is "twenty billion, fifty-five million, seven hundred seventy-two thousand".