266493506741204 has 6 divisors (see below), whose sum is σ = 466363636797114. Its totient is φ = 133246753370600.

The previous prime is 266493506741183. The next prime is 266493506741237. The reversal of 266493506741204 is 402147605394662.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 180560977540804 + 85932529200400 = 13437298^2 + 9269980^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33311688342647 + ... + 33311688342654.

It is an arithmetic number, because the mean of its divisors is an integer number (77727272799519).

Almost surely, 2^{266493506741204} is an apocalyptic number.

It is an amenable number.

266493506741204 is a deficient number, since it is larger than the sum of its proper divisors (199870130055910).

266493506741204 is a wasteful number, since it uses less digits than its factorization.

266493506741204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66623376685305 (or 66623376685303 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 59.

The spelling of 266493506741204 in words is "two hundred sixty-six trillion, four hundred ninety-three billion, five hundred six million, seven hundred forty-one thousand, two hundred four".