2705135156663 has 4 divisors (see below), whose sum is σ = 2705221512000. Its totient is φ = 2705048801328.

The previous prime is 2705135156657. The next prime is 2705135156671. The reversal of 2705135156663 is 3666515315072.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2705135156663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2705135156623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43130663 + ... + 43193336.

It is an arithmetic number, because the mean of its divisors is an integer number (676305378000).

Almost surely, 2^{2705135156663} is an apocalyptic number.

2705135156663 is a deficient number, since it is larger than the sum of its proper divisors (86355337).

2705135156663 is an equidigital number, since it uses as much as digits as its factorization.

2705135156663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86355336.

The product of its (nonzero) digits is 3402000, while the sum is 50.

The spelling of 2705135156663 in words is "two trillion, seven hundred five billion, one hundred thirty-five million, one hundred fifty-six thousand, six hundred sixty-three".