266642441332 has 6 divisors (see below), whose sum is σ = 466624272338. Its totient is φ = 133321220664.

The previous prime is 266642441323. The next prime is 266642441341. The reversal of 266642441332 is 233144246662.

It is an interprime number because it is at equal distance from previous prime (266642441323) and next prime (266642441341).

It can be written as a sum of positive squares in only one way, i.e., 181813548816 + 84828892516 = 426396^2 + 291254^2 .

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, 33330305163 + ... + 33330305170.

Almost surely, 2^266642441332 is an apocalyptic number.

It is an amenable number.

266642441332 is a deficient number, since it is larger than the sum of its proper divisors (199981831006).

266642441332 is a wasteful number, since it uses less digits than its factorization.

266642441332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66660610337 (or 66660610335 counting only the distinct ones).

The product of its digits is 995328, while the sum is 43.

Adding to 266642441332 its reverse (233144246662), we get a palindrome (499786687994).

The spelling of 266642441332 in words is "two hundred sixty-six billion, six hundred forty-two million, four hundred forty-one thousand, three hundred thirty-two".