266012321260255 has 8 divisors (see below), whose sum is σ = 319216285542672. Its totient is φ = 212808856987968.

The previous prime is 266012321260247. The next prime is 266012321260271. The reversal of 266012321260255 is 552062123210662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 266012321260255 - 2³ = 266012321260247 is a prime.

It is a super-2 number, since 2×266012321260255² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123831102 + ... + 125960971.

It is an arithmetic number, because the mean of its divisors is an integer number (39902035692834).

Almost surely, 2^{266012321260255} is an apocalyptic number.

266012321260255 is a deficient number, since it is larger than the sum of its proper divisors (53203964282417).

266012321260255 is a wasteful number, since it uses less digits than its factorization.

266012321260255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250005065.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 266012321260255 in words is "two hundred sixty-six trillion, twelve billion, three hundred twenty-one million, two hundred sixty thousand, two hundred fifty-five".