6678558766 has 32 divisors (see below), whose sum is σ = 11648136960. Its totient is φ = 2838192000.

The previous prime is 6678558721. The next prime is 6678558769.

6678558766 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 6678558698 and 6678558707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6678558769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2656 + ... + 115603.

It is an arithmetic number, because the mean of its divisors is an integer number (364004280).

Almost surely, 2^6678558766 is an apocalyptic number.

6678558766 is a deficient number, since it is larger than the sum of its proper divisors (4969578194).

6678558766 is a wasteful number, since it uses less digits than its factorization.

6678558766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118440.

The product of its digits is 101606400, while the sum is 64.

The square root of 6678558766 is about 81722.4495839424. The cubic root of 6678558766 is about 1883.1904823978.

The spelling of 6678558766 in words is "six billion, six hundred seventy-eight million, five hundred fifty-eight thousand, seven hundred sixty-six".