20135634725260 has 24 divisors (see below), whose sum is σ = 42284945119536. Its totient is φ = 8054232519360.

The previous prime is 20135634725233. The next prime is 20135634725263. The reversal of 20135634725260 is 6252743653102.

It is a self number, because there is not a number n which added to its sum of digits gives 20135634725260.

It is not an unprimeable number, because it can be changed into a prime (20135634725263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7972579 + ... + 10189861.

It is an arithmetic number, because the mean of its divisors is an integer number (1761872713314).

Almost surely, 2^{20135634725260} is an apocalyptic number.

20135634725260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20135634725260 is an abundant number, since it is smaller than the sum of its proper divisors (22149310394276).

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

20135634725260 is a wasteful number, since it uses less digits than its factorization.

20135634725260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671353 (or 2671351 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 20135634725260 in words is "twenty trillion, one hundred thirty-five billion, six hundred thirty-four million, seven hundred twenty-five thousand, two hundred sixty".