12805166701 has 8 divisors (see below), whose sum is σ = 12876210360. Its totient is φ = 12734260992.

The previous prime is 12805166687. The next prime is 12805166713. The reversal of 12805166701 is 10766150821.

It can be written as a sum of positive squares in 4 ways, for example, as 5314264201 + 7490902500 = 72899^2 + 86550^2 .

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 12805166701 - 2⁵ = 12805166669 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 (12805166741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154531 + ... + 222463.

It is an arithmetic number, because the mean of its divisors is an integer number (1609526295).

Almost surely, 2^12805166701 is an apocalyptic number.

It is an amenable number.

12805166701 is a deficient number, since it is larger than the sum of its proper divisors (71043659).

12805166701 is an equidigital number, since it uses as much as digits as its factorization.

12805166701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68975.

The product of its (nonzero) digits is 20160, while the sum is 37.

The spelling of 12805166701 in words is "twelve billion, eight hundred five million, one hundred sixty-six thousand, seven hundred one".