20225748180 has 48 divisors (see below), whose sum is σ = 61780469184. Its totient is φ = 4903211520.

The previous prime is 20225748173. The next prime is 20225748187. The reversal of 20225748180 is 8184752202.

It is an interprime number because it is at equal distance from previous prime (20225748173) and next prime (20225748187).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20225748187) 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 15 ways as a sum of consecutive naturals, for example, 15321877 + ... + 15323196.

It is an arithmetic number, because the mean of its divisors is an integer number (1287093108).

Almost surely, 2^20225748180 is an apocalyptic number.

20225748180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20225748180 is an abundant number, since it is smaller than the sum of its proper divisors (41554721004).

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

20225748180 is a wasteful number, since it uses less digits than its factorization.

20225748180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30645096 (or 30645094 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 39.

The spelling of 20225748180 in words is "twenty billion, two hundred twenty-five million, seven hundred forty-eight thousand, one hundred eighty".