20135482290 has 480 divisors, whose sum is σ = 68521692096. Its totient is φ = 4065949440.

The previous prime is 20135482259. The next prime is 20135482331. The reversal of 20135482290 is 9228453102.

It is a happy number.

20135482290 is a `hidden beast` number, since 2 + 0 + 1 + 3 + 548 + 22 + 90 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 102210472 + ... + 102210668.

Almost surely, 2^20135482290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20135482290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34260846048).

20135482290 is an abundant number, since it is smaller than the sum of its proper divisors (48386209806).

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

20135482290 is a wasteful number, since it uses less digits than its factorization.

20135482290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 20135482290 in words is "twenty billion, one hundred thirty-five million, four hundred eighty-two thousand, two hundred ninety".