20225746020 has 96 divisors (see below), whose sum is σ = 58497094656. Its totient is φ = 5216140800.

The previous prime is 20225746019. The next prime is 20225746033. The reversal of 20225746020 is 2064752202.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4158390 + ... + 4163250.

It is an arithmetic number, because the mean of its divisors is an integer number (609344736).

Almost surely, 2^20225746020 is an apocalyptic number.

20225746020 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 20225746020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29248547328).

20225746020 is an abundant number, since it is smaller than the sum of its proper divisors (38271348636).

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

20225746020 is a wasteful number, since it uses less digits than its factorization.

20225746020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7141 (or 7139 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The spelling of 20225746020 in words is "twenty billion, two hundred twenty-five million, seven hundred forty-six thousand, twenty".