20303481744 has 480 divisors, whose sum is σ = 72887779328. Its totient is φ = 5132160000.

The previous prime is 20303481739. The next prime is 20303481761. The reversal of 20303481744 is 44718430302.

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

It is a junction number, because it is equal to n+sod(n) for n = 20303481699 and 20303481708.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 61339659 + ... + 61339989.

Almost surely, 2^20303481744 is an apocalyptic number.

20303481744 is a gapful number since it is divisible by the number (24) 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 20303481744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36443889664).

20303481744 is an abundant number, since it is smaller than the sum of its proper divisors (52584297584).

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

20303481744 is a wasteful number, since it uses less digits than its factorization.

20303481744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The spelling of 20303481744 in words is "twenty billion, three hundred three million, four hundred eighty-one thousand, seven hundred forty-four".