266111030429987 has 2 divisors, whose sum is σ = 266111030429988. Its totient is φ = 266111030429986.

The previous prime is 266111030429963. The next prime is 266111030430103. The reversal of 266111030429987 is 789924030111662.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 266111030429987 - 2³² = 266106735462691 is a prime.

It is not a weakly prime, because it can be changed into another prime (266111030429957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133055515214993 + 133055515214994.

It is an arithmetic number, because the mean of its divisors is an integer number (133055515214994).

Almost surely, 2^{266111030429987} is an apocalyptic number.

266111030429987 is a deficient number, since it is larger than the sum of its proper divisors (1).

266111030429987 is an equidigital number, since it uses as much as digits as its factorization.

266111030429987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 266111030429987 in words is "two hundred sixty-six trillion, one hundred eleven billion, thirty million, four hundred twenty-nine thousand, nine hundred eighty-seven".