20502402048 has 352 divisors, whose sum is σ = 66028032000. Its totient is φ = 6260613120.

The previous prime is 20502402043. The next prime is 20502402071. The reversal of 20502402048 is 84020420502.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20502402043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16284043 + ... + 16285301.

Almost surely, 2^20502402048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20502402048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33014016000).

20502402048 is an abundant number, since it is smaller than the sum of its proper divisors (45525629952).

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

20502402048 is a wasteful number, since it uses less digits than its factorization.

20502402048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338 (or 1314 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The spelling of 20502402048 in words is "twenty billion, five hundred two million, four hundred two thousand, forty-eight".