20385388722 has 8 divisors (see below), whose sum is σ = 40770777456. Its totient is φ = 6795129572.

The previous prime is 20385388703. The next prime is 20385388729. The reversal of 20385388722 is 22788358302.

It is a sphenic number, since it is the product of 3 distinct primes.

20385388722 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20385388729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1698782388 + ... + 1698782399.

It is an arithmetic number, because the mean of its divisors is an integer number (5096347182).

Almost surely, 2^20385388722 is an apocalyptic number.

20385388722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20385388722 is a wasteful number, since it uses less digits than its factorization.

20385388722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397564792.

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 20385388722 in words is "twenty billion, three hundred eighty-five million, three hundred eighty-eight thousand, seven hundred twenty-two".