266126051 has 4 divisors (see below), whose sum is σ = 266556600. Its totient is φ = 265695504.

The previous prime is 266126017. The next prime is 266126053. The reversal of 266126051 is 150621662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266126051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266126053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214346 + ... + 215583.

It is an arithmetic number, because the mean of its divisors is an integer number (66639150).

Almost surely, 2^266126051 is an apocalyptic number.

266126051 is a deficient number, since it is larger than the sum of its proper divisors (430549).

266126051 is an equidigital number, since it uses as much as digits as its factorization.

266126051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430548.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 266126051 is about 16313.3703139480. The cubic root of 266126051 is about 643.2243298963.

The spelling of 266126051 in words is "two hundred sixty-six million, one hundred twenty-six thousand, fifty-one".