266046012633641 has 2 divisors, whose sum is σ = 266046012633642. Its totient is φ = 266046012633640.

The previous prime is 266046012633607. The next prime is 266046012633757. The reversal of 266046012633641 is 146336210640662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175257988158016 + 90788024475625 = 13238504^2 + 9528275^2 .

It is a cyclic number.

It is not a de Polignac number, because 266046012633641 - 2¹⁴ = 266046012617257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 266046012633641.

It is not a weakly prime, because it can be changed into another prime (266046012633601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133023006316820 + 133023006316821.

It is an arithmetic number, because the mean of its divisors is an integer number (133023006316821).

Almost surely, 2^{266046012633641} is an apocalyptic number.

It is an amenable number.

266046012633641 is a deficient number, since it is larger than the sum of its proper divisors (1).

266046012633641 is an equidigital number, since it uses as much as digits as its factorization.

266046012633641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4478976, while the sum is 50.

The spelling of 266046012633641 in words is "two hundred sixty-six trillion, forty-six billion, twelve million, six hundred thirty-three thousand, six hundred forty-one".