2666689000067 has 2 divisors, whose sum is σ = 2666689000068. Its totient is φ = 2666689000066.

The previous prime is 2666688999979. The next prime is 2666689000121. The reversal of 2666689000067 is 7600009866662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2666689000067 - 2⁸ = 2666688999811 is a prime.

It is a super-2 number, since 2×2666689000067² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2666688999976 and 2666689000021.

It is not a weakly prime, because it can be changed into another prime (2666689000967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333344500033 + 1333344500034.

It is an arithmetic number, because the mean of its divisors is an integer number (1333344500034).

Almost surely, 2^{2666689000067} is an apocalyptic number.

2666689000067 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666689000067 is an equidigital number, since it uses as much as digits as its factorization.

2666689000067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 56.

The spelling of 2666689000067 in words is "two trillion, six hundred sixty-six billion, six hundred eighty-nine million, sixty-seven", and thus it is an aban number.