20335240130535 has 96 divisors (see below), whose sum is σ = 40322931105600. Its totient is φ = 9389122283520.

The previous prime is 20335240130519. The next prime is 20335240130539. The reversal of 20335240130535 is 53503104253302.

20335240130535 is a `hidden beast` number, since 2 + 0 + 3 + 3 + 52 + 40 + 1 + 30 + 535 = 666.

It is not a de Polignac number, because 20335240130535 - 2⁴ = 20335240130519 is a prime.

It is a super-2 number, since 2×20335240130535² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20335240130535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20335240130539) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8654800 + ... + 10750629.

It is an arithmetic number, because the mean of its divisors is an integer number (420030532350).

Almost surely, 2^{20335240130535} is an apocalyptic number.

20335240130535 is a deficient number, since it is larger than the sum of its proper divisors (19987690975065).

20335240130535 is a wasteful number, since it uses less digits than its factorization.

20335240130535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19405553 (or 19405550 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 36.

Adding to 20335240130535 its reverse (53503104253302), we get a palindrome (73838344383837).

The spelling of 20335240130535 in words is "twenty trillion, three hundred thirty-five billion, two hundred forty million, one hundred thirty thousand, five hundred thirty-five".