266162651 has 2 divisors, whose sum is σ = 266162652. Its totient is φ = 266162650.

The previous prime is 266162593. The next prime is 266162653. The reversal of 266162651 is 156261662.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266162651 is a prime.

It is a Sophie Germain prime.

Together with 266162653, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_14513966 and since 266162651 and 14513966 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (266162653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133081325 + 133081326.

It is an arithmetic number, because the mean of its divisors is an integer number (133081326).

Almost surely, 2^266162651 is an apocalyptic number.

266162651 is a deficient number, since it is larger than the sum of its proper divisors (1).

266162651 is an equidigital number, since it uses as much as digits as its factorization.

266162651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 35.

The square root of 266162651 is about 16314.4920546121. The cubic root of 266162651 is about 643.2538158376.

The spelling of 266162651 in words is "two hundred sixty-six million, one hundred sixty-two thousand, six hundred fifty-one".