266406064264 has 16 divisors (see below), whose sum is σ = 499529365020. Its totient is φ = 133198233600.

The previous prime is 266406064241. The next prime is 266406064277. The reversal of 266406064264 is 462460604662.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 249958001764 + 16448062500 = 499958^2 + 128250^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358137 + ... + 813064.

Almost surely, 2^266406064264 is an apocalyptic number.

It is an amenable number.

266406064264 is a deficient number, since it is larger than the sum of its proper divisors (233123300756).

266406064264 is a wasteful number, since it uses less digits than its factorization.

266406064264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199640 (or 1199636 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 46.

The spelling of 266406064264 in words is "two hundred sixty-six billion, four hundred six million, sixty-four thousand, two hundred sixty-four".