266552416505234 has 4 divisors (see below), whose sum is σ = 399828624757854. Its totient is φ = 133276208252616.

The previous prime is 266552416505231. The next prime is 266552416505237. The reversal of 266552416505234 is 432505614255662.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (266552416505231) and next prime (266552416505237).

It can be written as a sum of positive squares in only one way, i.e., 146794960114609 + 119757456390625 = 12115897^2 + 10943375^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 266552416505234.

It is not an unprimeable number, because it can be changed into a prime (266552416505231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66638104126307 + ... + 66638104126310.

Almost surely, 2^{266552416505234} is an apocalyptic number.

266552416505234 is a deficient number, since it is larger than the sum of its proper divisors (133276208252620).

266552416505234 is a wasteful number, since it uses less digits than its factorization.

266552416505234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133276208252619.

The product of its (nonzero) digits is 51840000, while the sum is 56.

The spelling of 266552416505234 in words is "two hundred sixty-six trillion, five hundred fifty-two billion, four hundred sixteen million, five hundred five thousand, two hundred thirty-four".