20703530016 has 336 divisors, whose sum is σ = 66321132696. Its totient is φ = 6321328128.

The previous prime is 20703529997. The next prime is 20703530039. The reversal of 20703530016 is 61003530702.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16434214416 + 4269315600 = 128196^2 + 65340^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 70660366 + ... + 70660658.

Almost surely, 2^20703530016 is an apocalyptic number.

20703530016 is a gapful number since it is divisible by the number (26) 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 20703530016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33160566348).

20703530016 is an abundant number, since it is smaller than the sum of its proper divisors (45617602680).

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

20703530016 is a wasteful number, since it uses less digits than its factorization.

20703530016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 544 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The spelling of 20703530016 in words is "twenty billion, seven hundred three million, five hundred thirty thousand, sixteen".