8066614180921 has 4 divisors (see below), whose sum is σ = 8088240492772. Its totient is φ = 8044987869072.

The previous prime is 8066614180913. The next prime is 8066614181011. The reversal of 8066614180921 is 1290814166608.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4177281945600 + 3889332235321 = 2043840^2 + 1972139^2 .

It is a cyclic number.

It is not a de Polignac number, because 8066614180921 - 2³ = 8066614180913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8066614181921) 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 3 ways as a sum of consecutive naturals, for example, 10813155366 + ... + 10813156111.

It is an arithmetic number, because the mean of its divisors is an integer number (2022060123193).

Almost surely, 2^{8066614180921} is an apocalyptic number.

It is an amenable number.

8066614180921 is a deficient number, since it is larger than the sum of its proper divisors (21626311851).

8066614180921 is a wasteful number, since it uses less digits than its factorization.

8066614180921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21626311850.

The product of its (nonzero) digits is 995328, while the sum is 52.

The spelling of 8066614180921 in words is "eight trillion, sixty-six billion, six hundred fourteen million, one hundred eighty thousand, nine hundred twenty-one".