8266605001211 has 4 divisors (see below), whose sum is σ = 8366202651912. Its totient is φ = 8167007350512.

The previous prime is 8266605001141. The next prime is 8266605001219. The reversal of 8266605001211 is 1121005066628.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8266605001211 is a prime.

It is a super-2 number, since 2×8266605001211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8266605001219) 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, 49798825226 + ... + 49798825391.

It is an arithmetic number, because the mean of its divisors is an integer number (2091550662978).

Almost surely, 2^{8266605001211} is an apocalyptic number.

8266605001211 is a deficient number, since it is larger than the sum of its proper divisors (99597650701).

8266605001211 is an equidigital number, since it uses as much as digits as its factorization.

8266605001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99597650700.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 8266605001211 in words is "eight trillion, two hundred sixty-six billion, six hundred five million, one thousand, two hundred eleven".