20135154055163 has 16 divisors (see below), whose sum is σ = 23036624308224. Its totient is φ = 17239941646560.

The previous prime is 20135154055147. The next prime is 20135154055171. The reversal of 20135154055163 is 36155045153102.

It is a cyclic number.

It is not a de Polignac number, because 20135154055163 - 2⁴ = 20135154055147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20135154055163.

It is not an unprimeable number, because it can be changed into a prime (20135154055363) 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 15 ways as a sum of consecutive naturals, for example, 87310778 + ... + 87541088.

It is an arithmetic number, because the mean of its divisors is an integer number (1439789019264).

Almost surely, 2^{20135154055163} is an apocalyptic number.

20135154055163 is a deficient number, since it is larger than the sum of its proper divisors (2901470253061).

20135154055163 is a wasteful number, since it uses less digits than its factorization.

20135154055163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243842.

The product of its (nonzero) digits is 270000, while the sum is 41.

The spelling of 20135154055163 in words is "twenty trillion, one hundred thirty-five billion, one hundred fifty-four million, fifty-five thousand, one hundred sixty-three".