266674124025 has 81 divisors (see below), whose sum is σ = 482846189709. Its totient is φ = 140693509440.

The previous prime is 266674123997. The next prime is 266674124027. The reversal of 266674124025 is 520421476662.

The square root of 266674124025 is 516405.

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

266674124025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 29357052921 + 237317071104 = 171339^2 + 487152^2 .

It is not a de Polignac number, because 266674124025 - 2⁷ = 266674123897 is a prime.

It is a super-2 number, since 2×266674124025² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (266674124027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1340070876 + ... + 1340071074.

Almost surely, 2^266674124025 is an apocalyptic number.

266674124025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

266674124025 is the 516405-th square number.

266674124025 is the 258203-rd centered octagonal number.

It is an amenable number.

266674124025 is a deficient number, since it is larger than the sum of its proper divisors (216172065684).

266674124025 is an equidigital number, since it uses as much as digits as its factorization.

266674124025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 266674124025 in words is "two hundred sixty-six billion, six hundred seventy-four million, one hundred twenty-four thousand, twenty-five".