20748183120 has 480 divisors, whose sum is σ = 85103695872. Its totient is φ = 4421910528.

The previous prime is 20748183097. The next prime is 20748183143. The reversal of 20748183120 is 2138184702.

It is an interprime number because it is at equal distance from previous prime (20748183097) and next prime (20748183143).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9680769 + ... + 9682911.

Almost surely, 2^20748183120 is an apocalyptic number.

20748183120 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 20748183120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42551847936).

20748183120 is an abundant number, since it is smaller than the sum of its proper divisors (64355512752).

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

20748183120 is a wasteful number, since it uses less digits than its factorization.

20748183120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299 (or 2290 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 20748183120 in words is "twenty billion, seven hundred forty-eight million, one hundred eighty-three thousand, one hundred twenty".