6781883166 has 16 divisors (see below), whose sum is σ = 15070851600. Its totient is φ = 2260627704.

The previous prime is 6781883153. The next prime is 6781883197. The reversal of 6781883166 is 6613881876.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 125590429 = 6781883166 / (6 + 7 + 8 + 1 + 8 + 8 + 3 + 1 + 6 + 6).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 62795161 + ... + 62795268.

It is an arithmetic number, because the mean of its divisors is an integer number (941928225).

Almost surely, 2^6781883166 is an apocalyptic number.

6781883166 is an abundant number, since it is smaller than the sum of its proper divisors (8288968434).

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

6781883166 is a wasteful number, since it uses less digits than its factorization.

6781883166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125590440 (or 125590434 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 6781883166 is about 82352.1898069505. The cubic root of 6781883166 is about 1892.8524778235.

The spelling of 6781883166 in words is "six billion, seven hundred eighty-one million, eight hundred eighty-three thousand, one hundred sixty-six".