2663113665 has 64 divisors (see below), whose sum is σ = 4656890880. Its totient is φ = 1294110720.

The previous prime is 2663113643. The next prime is 2663113669. The reversal of 2663113665 is 5663113662.

2663113665 = 12155² + 12156² + ... + 12172².

It is a happy number.

It is not a de Polignac number, because 2663113665 - 2⁵ = 2663113633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2663113669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2254375 + ... + 2255555.

It is an arithmetic number, because the mean of its divisors is an integer number (72763920).

Almost surely, 2^2663113665 is an apocalyptic number.

It is an amenable number.

2663113665 is a deficient number, since it is larger than the sum of its proper divisors (1993777215).

2663113665 is a wasteful number, since it uses less digits than its factorization.

2663113665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482.

The product of its digits is 116640, while the sum is 39.

The square root of 2663113665 is about 51605.3646920550. The cubic root of 2663113665 is about 1386.1063965306.

The spelling of 2663113665 in words is "two billion, six hundred sixty-three million, one hundred thirteen thousand, six hundred sixty-five".