6766777161 has 12 divisors (see below), whose sum is σ = 9776332800. Its totient is φ = 4510215960.

The previous prime is 6766777159. The next prime is 6766777177. The reversal of 6766777161 is 1617776676.

It is not a de Polignac number, because 6766777161 - 2¹ = 6766777159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6766777098 and 6766777107.

It is not an unprimeable number, because it can be changed into a prime (6766777151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35145 + ... + 121526.

It is an arithmetic number, because the mean of its divisors is an integer number (814694400).

Almost surely, 2^6766777161 is an apocalyptic number.

It is an amenable number.

6766777161 is a deficient number, since it is larger than the sum of its proper divisors (3009555639).

6766777161 is a wasteful number, since it uses less digits than its factorization.

6766777161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161476 (or 161473 counting only the distinct ones).

The product of its digits is 3111696, while the sum is 54.

The square root of 6766777161 is about 82260.4228107296. The cubic root of 6766777161 is about 1891.4460496317.

The spelling of 6766777161 in words is "six billion, seven hundred sixty-six million, seven hundred seventy-seven thousand, one hundred sixty-one".