266012136360321 has 8 divisors (see below), whose sum is σ = 381966144517440. Its totient is φ = 163699776221712.

The previous prime is 266012136360301. The next prime is 266012136360337. The reversal of 266012136360321 is 123063631210662.

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

It is not a de Polignac number, because 266012136360321 - 2⁷ = 266012136360193 is a prime.

It is a super-2 number, since 2×266012136360321² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (266012136360301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3410412004581 + ... + 3410412004658.

It is an arithmetic number, because the mean of its divisors is an integer number (47745768064680).

Almost surely, 2^{266012136360321} is an apocalyptic number.

It is an amenable number.

266012136360321 is a deficient number, since it is larger than the sum of its proper divisors (115954008157119).

266012136360321 is a wasteful number, since it uses less digits than its factorization.

266012136360321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6820824009255.

The product of its (nonzero) digits is 279936, while the sum is 42.

Adding to 266012136360321 its reverse (123063631210662), we get a palindrome (389075767570983).

The spelling of 266012136360321 in words is "two hundred sixty-six trillion, twelve billion, one hundred thirty-six million, three hundred sixty thousand, three hundred twenty-one".