6766167661 has 12 divisors (see below), whose sum is σ = 7439219872. Its totient is φ = 6149385000.

The previous prime is 6766167647. The next prime is 6766167703. The reversal of 6766167661 is 1667616676.

It is not a de Polignac number, because 6766167661 - 2¹¹ = 6766165613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6766167599 and 6766167608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6766167631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 739726 + ... + 748816.

Almost surely, 2^6766167661 is an apocalyptic number.

It is an amenable number.

6766167661 is a deficient number, since it is larger than the sum of its proper divisors (673052211).

6766167661 is a wasteful number, since it uses less digits than its factorization.

6766167661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15264 (or 15253 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 52.

The square root of 6766167661 is about 82256.7180295932. The cubic root of 6766167661 is about 1891.3892588851.

The spelling of 6766167661 in words is "six billion, seven hundred sixty-six million, one hundred sixty-seven thousand, six hundred sixty-one".