20135754511663 has 8 divisors (see below), whose sum is σ = 23115485001728. Its totient is φ = 17181822554424.

The previous prime is 20135754511657. The next prime is 20135754511667. The reversal of 20135754511663 is 36611545753102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20135754511663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20135754511667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6449631531 + ... + 6449634652.

It is an arithmetic number, because the mean of its divisors is an integer number (2889435625216).

Almost surely, 2^{20135754511663} is an apocalyptic number.

20135754511663 is a deficient number, since it is larger than the sum of its proper divisors (2979730490065).

20135754511663 is a wasteful number, since it uses less digits than its factorization.

20135754511663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12899266413.

The product of its (nonzero) digits is 2268000, while the sum is 49.

The spelling of 20135754511663 in words is "twenty trillion, one hundred thirty-five billion, seven hundred fifty-four million, five hundred eleven thousand, six hundred sixty-three".