266046332256243 has 24 divisors (see below), whose sum is σ = 479113741207296. Its totient is φ = 138205886886000.

The previous prime is 266046332256197. The next prime is 266046332256253. The reversal of 266046332256243 is 342652233640662.

266046332256243 is a `hidden beast` number, since 2 + 6 + 6 + 0 + 4 + 6 + 3 + 3 + 2 + 2 + 5 + 624 + 3 = 666.

It is not a de Polignac number, because 266046332256243 - 2²⁴ = 266046315479027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 266046332256243.

It is not an unprimeable number, because it can be changed into a prime (266046332256253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191952619983 + ... + 191952621368.

It is an arithmetic number, because the mean of its divisors is an integer number (19963072550304).

Almost surely, 2^{266046332256243} is an apocalyptic number.

266046332256243 is a deficient number, since it is larger than the sum of its proper divisors (213067408951053).

266046332256243 is a wasteful number, since it uses less digits than its factorization.

266046332256243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383905241375 (or 383905241372 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 54.

The spelling of 266046332256243 in words is "two hundred sixty-six trillion, forty-six billion, three hundred thirty-two million, two hundred fifty-six thousand, two hundred forty-three".