266115336256253 has 4 divisors (see below), whose sum is σ = 290307639552288. Its totient is φ = 241923032960220.

The previous prime is 266115336256249. The next prime is 266115336256277. The reversal of 266115336256253 is 352652633511662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 266115336256253 - 2² = 266115336256249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266115336256853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12096151648001 + ... + 12096151648022.

It is an arithmetic number, because the mean of its divisors is an integer number (72576909888072).

Almost surely, 2^{266115336256253} is an apocalyptic number.

It is an amenable number.

266115336256253 is a deficient number, since it is larger than the sum of its proper divisors (24192303296035).

266115336256253 is a wasteful number, since it uses less digits than its factorization.

266115336256253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24192303296034.

The product of its digits is 34992000, while the sum is 56.

The spelling of 266115336256253 in words is "two hundred sixty-six trillion, one hundred fifteen billion, three hundred thirty-six million, two hundred fifty-six thousand, two hundred fifty-three".