8611433222218 has 4 divisors (see below), whose sum is σ = 12917149833330. Its totient is φ = 4305716611108.

The previous prime is 8611433222209. The next prime is 8611433222237. The reversal of 8611433222218 is 8122223341168.

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

It can be written as a sum of positive squares in only one way, i.e., 8356395092049 + 255038130169 = 2890743^2 + 505013^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2152858305553 + ... + 2152858305556.

Almost surely, 2^{8611433222218} is an apocalyptic number.

8611433222218 is a deficient number, since it is larger than the sum of its proper divisors (4305716611112).

8611433222218 is a wasteful number, since it uses less digits than its factorization.

8611433222218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4305716611111.

The product of its digits is 221184, while the sum is 43.

The spelling of 8611433222218 in words is "eight trillion, six hundred eleven billion, four hundred thirty-three million, two hundred twenty-two thousand, two hundred eighteen".