20263002480 has 480 divisors, whose sum is σ = 80139870720. Its totient is φ = 4492707840.

The previous prime is 20263002479. The next prime is 20263002569. The reversal of 20263002480 is 8420036202.

20263002480 is a `hidden beast` number, since 2 + 0 + 2 + 630 + 0 + 24 + 8 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 24680470 + ... + 24681290.

It is an arithmetic number, because the mean of its divisors is an integer number (166958064).

Almost surely, 2^20263002480 is an apocalyptic number.

20263002480 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 20263002480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40069935360).

20263002480 is an abundant number, since it is smaller than the sum of its proper divisors (59876868240).

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

20263002480 is a wasteful number, since it uses less digits than its factorization.

20263002480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989 (or 980 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 20263002480 its reverse (8420036202), we get a palindrome (28683038682).

The spelling of 20263002480 in words is "twenty billion, two hundred sixty-three million, two thousand, four hundred eighty".