76666611666667 has 16 divisors (see below), whose sum is σ = 87279217062912. Its totient is φ = 66661613536320.

The previous prime is 76666611666649. The next prime is 76666611666683.

76666611666667 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-76666611666667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76666611666593 and 76666611666602.

It is not an unprimeable number, because it can be changed into a prime (76666611666467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7997298 + ... + 14740759.

It is an arithmetic number, because the mean of its divisors is an integer number (5454951066432).

Almost surely, 2^{76666611666667} is an apocalyptic number.

76666611666667 is a deficient number, since it is larger than the sum of its proper divisors (10612605396245).

76666611666667 is a wasteful number, since it uses less digits than its factorization.

76666611666667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22751418.

The product of its digits is 2962842624, while the sum is 76.

The spelling of 76666611666667 in words is "seventy-six trillion, six hundred sixty-six billion, six hundred eleven million, six hundred sixty-six thousand, six hundred sixty-seven".