5668776778665 has 96 divisors (see below), whose sum is σ = 12270217252608. Its totient is φ = 2174635584000.

The previous prime is 5668776778663. The next prime is 5668776778681.

5668776778665 is nontrivially palindromic in base 10.

5668776778665 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5668776778665 - 2¹ = 5668776778663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5668776778661) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16995786 + ... + 17326115.

It is an arithmetic number, because the mean of its divisors is an integer number (127814763048).

Almost surely, 2^{5668776778665} is an apocalyptic number.

5668776778665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5668776778665 is an abundant number, since it is smaller than the sum of its proper divisors (6601440473943).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5668776778665 is a wasteful number, since it uses less digits than its factorization.

5668776778665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34321951 (or 34321940 counting only the distinct ones).

The product of its digits is 29872281600, while the sum is 84.

The spelling of 5668776778665 in words is "five trillion, six hundred sixty-eight billion, seven hundred seventy-six million, seven hundred seventy-eight thousand, six hundred sixty-five".