6778344511167 has 8 divisors (see below), whose sum is σ = 9038297404080. Its totient is φ = 4518643979520.

The previous prime is 6778344511163. The next prime is 6778344511171. The reversal of 6778344511167 is 7611154438776.

It is an interprime number because it is at equal distance from previous prime (6778344511163) and next prime (6778344511171).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6778344511167 - 2² = 6778344511163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6778344511167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6778344511163) 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, 63027634 + ... + 63135087.

It is an arithmetic number, because the mean of its divisors is an integer number (1129787175510).

Almost surely, 2^{6778344511167} is an apocalyptic number.

6778344511167 is a deficient number, since it is larger than the sum of its proper divisors (2259952892913).

6778344511167 is a wasteful number, since it uses less digits than its factorization.

6778344511167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126180633.

The product of its digits is 23708160, while the sum is 60.

The spelling of 6778344511167 in words is "six trillion, seven hundred seventy-eight billion, three hundred forty-four million, five hundred eleven thousand, one hundred sixty-seven".