8166420144222 has 32 divisors (see below), whose sum is σ = 17193404632320. Its totient is φ = 2578728343680.

The previous prime is 8166420144217. The next prime is 8166420144229. The reversal of 8166420144222 is 2224410246618.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8166420144229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140647 + ... + 4043837.

It is an arithmetic number, because the mean of its divisors is an integer number (537293894760).

Almost surely, 2^{8166420144222} is an apocalyptic number.

8166420144222 is an abundant number, since it is smaller than the sum of its proper divisors (9026984488098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8166420144222 is a wasteful number, since it uses less digits than its factorization.

8166420144222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3921568.

The product of its (nonzero) digits is 294912, while the sum is 42.

The spelling of 8166420144222 in words is "eight trillion, one hundred sixty-six billion, four hundred twenty million, one hundred forty-four thousand, two hundred twenty-two".