20135530884 has 24 divisors (see below), whose sum is σ = 53694749248. Its totient is φ = 5753008800.

The previous prime is 20135530829. The next prime is 20135530889. The reversal of 20135530884 is 48803553102.

It is not an unprimeable number, because it can be changed into a prime (20135530889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119854267 + ... + 119854434.

Almost surely, 2^20135530884 is an apocalyptic number.

It is an amenable number.

20135530884 is an abundant number, since it is smaller than the sum of its proper divisors (33559218364).

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

20135530884 is a wasteful number, since it uses less digits than its factorization.

20135530884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239708715 (or 239708713 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 20135530884 in words is "twenty billion, one hundred thirty-five million, five hundred thirty thousand, eight hundred eighty-four".