266046151256377 has 2 divisors, whose sum is σ = 266046151256378. Its totient is φ = 266046151256376.

The previous prime is 266046151256311. The next prime is 266046151256449. The reversal of 266046151256377 is 773652151640662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184666465353616 + 81379685902761 = 13589204^2 + 9021069^2 .

It is a cyclic number.

It is not a de Polignac number, because 266046151256377 - 2¹¹ = 266046151254329 is a prime.

It is a super-2 number, since 2×266046151256377² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (266046151256077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133023075628188 + 133023075628189.

It is an arithmetic number, because the mean of its divisors is an integer number (133023075628189).

Almost surely, 2^{266046151256377} is an apocalyptic number.

It is an amenable number.

266046151256377 is a deficient number, since it is larger than the sum of its proper divisors (1).

266046151256377 is an equidigital number, since it uses as much as digits as its factorization.

266046151256377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76204800, while the sum is 61.

The spelling of 266046151256377 in words is "two hundred sixty-six trillion, forty-six billion, one hundred fifty-one million, two hundred fifty-six thousand, three hundred seventy-seven".