6778166746 has 16 divisors (see below), whose sum is σ = 11425405824. Its totient is φ = 2992367664.

The previous prime is 6778166737. The next prime is 6778166749. The reversal of 6778166746 is 6476618776.

6778166746 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (6778166749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5666766 + ... + 5667961.

It is an arithmetic number, because the mean of its divisors is an integer number (714087864).

Almost surely, 2^6778166746 is an apocalyptic number.

6778166746 is a deficient number, since it is larger than the sum of its proper divisors (4647239078).

6778166746 is a wasteful number, since it uses less digits than its factorization.

6778166746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11334765.

The product of its digits is 14224896, while the sum is 58.

The square root of 6778166746 is about 82329.6225304113. The cubic root of 6778166746 is about 1892.5066584299.

The spelling of 6778166746 in words is "six billion, seven hundred seventy-eight million, one hundred sixty-six thousand, seven hundred forty-six".