266724734116 has 27 divisors (see below), whose sum is σ = 473565287937. Its totient is φ = 131447872080.

The previous prime is 266724734077. The next prime is 266724734153. The reversal of 266724734116 is 611437427662.

The square root of 266724734116 is 516454.

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

It can be written as a sum of positive squares in only one way, i.e., 7138560100 + 259586174016 = 84490^2 + 509496^2 .

It is a super-2 number, since 2×266724734116² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 266724734116.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 73334650 + ... + 73338286.

Almost surely, 2^266724734116 is an apocalyptic number.

266724734116 is the 516454-th square number.

It is an amenable number.

266724734116 is a deficient number, since it is larger than the sum of its proper divisors (206840553821).

266724734116 is an frugal number, since it uses more digits than its factorization.

266724734116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7420 (or 3710 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 49.

Multiplying 266724734116 by its sum of digits (49), we get a square (13069511971684 = 3615178²).

The spelling of 266724734116 in words is "two hundred sixty-six billion, seven hundred twenty-four million, seven hundred thirty-four thousand, one hundred sixteen".