5668668665 has 32 divisors (see below), whose sum is σ = 7859137536. Its totient is φ = 3884506560.

The previous prime is 5668668659. The next prime is 5668668701.

5668668665 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5668668665 - 2²⁶ = 5601559801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5668668598 and 5668668607.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51314 + ... + 118196.

It is an arithmetic number, because the mean of its divisors is an integer number (245598048).

Almost surely, 2^5668668665 is an apocalyptic number.

5668668665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5668668665 is a deficient number, since it is larger than the sum of its proper divisors (2190468871).

5668668665 is a wasteful number, since it uses less digits than its factorization.

5668668665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66989.

The product of its digits is 74649600, while the sum is 62.

The square root of 5668668665 is about 75290.5615930709. The cubic root of 5668668665 is about 1783.0370096248.

The spelling of 5668668665 in words is "five billion, six hundred sixty-eight million, six hundred sixty-eight thousand, six hundred sixty-five".