2755811663 has 12 divisors (see below), whose sum is σ = 3031321104. Its totient is φ = 2503459200.

The previous prime is 2755811633. The next prime is 2755811671. The reversal of 2755811663 is 3661185572.

It is not a de Polignac number, because 2755811663 - 2⁶ = 2755811599 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 (2755811633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175295 + ... + 190367.

It is an arithmetic number, because the mean of its divisors is an integer number (252610092).

Almost surely, 2^2755811663 is an apocalyptic number.

2755811663 is a deficient number, since it is larger than the sum of its proper divisors (275509441).

2755811663 is a wasteful number, since it uses less digits than its factorization.

2755811663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16606 (or 16595 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The square root of 2755811663 is about 52495.8251959144. The cubic root of 2755811663 is about 1402.0059107960.

It can be divided in two parts, 2755 and 811663, that added together give a palindrome (814418).

The spelling of 2755811663 in words is "two billion, seven hundred fifty-five million, eight hundred eleven thousand, six hundred sixty-three".