266012136316401 has 16 divisors (see below), whose sum is σ = 362295842617344. Its totient is φ = 173536313584464.

The previous prime is 266012136316357. The next prime is 266012136316471. The reversal of 266012136316401 is 104613631210662.

It is a happy number.

It is not a de Polignac number, because 266012136316401 - 2⁹ = 266012136315889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (266012136316471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172538701 + ... + 174073626.

It is an arithmetic number, because the mean of its divisors is an integer number (22643490163584).

Almost surely, 2^{266012136316401} is an apocalyptic number.

It is an amenable number.

266012136316401 is a deficient number, since it is larger than the sum of its proper divisors (96283706300943).

266012136316401 is a wasteful number, since it uses less digits than its factorization.

266012136316401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346617820.

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 266012136316401 in words is "two hundred sixty-six trillion, twelve billion, one hundred thirty-six million, three hundred sixteen thousand, four hundred one".