266513030001 has 45 divisors (see below), whose sum is σ = 420320381481. Its totient is φ = 168268264056.

The previous prime is 266513029883. The next prime is 266513030023. The reversal of 266513030001 is 100030315662.

The square root of 266513030001 is 516249.

It is a perfect power (a square), and thus also a powerful number.

266513030001 is a `hidden beast` number, since 2 + 6 + 651 + 3 + 0 + 3 + 0 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 266513030001 - 2³¹ = 264365546353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (266513030101) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 88277070 + ... + 88280088.

Almost surely, 2^266513030001 is an apocalyptic number.

266513030001 is the 516249-th square number.

266513030001 is the 258125-th centered octagonal number.

It is an amenable number.

266513030001 is a deficient number, since it is larger than the sum of its proper divisors (153807351480).

266513030001 is an frugal number, since it uses more digits than its factorization.

266513030001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6088 (or 3041 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

Adding to 266513030001 its reverse (100030315662), we get a palindrome (366543345663).

The spelling of 266513030001 in words is "two hundred sixty-six billion, five hundred thirteen million, thirty thousand, one".