166522210201198 has 8 divisors (see below), whose sum is σ = 250047078045192. Its totient is φ = 83173184186136.

The previous prime is 166522210201181. The next prime is 166522210201199. The reversal of 166522210201198 is 891102012225661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166522210201199) 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, 43960454865 + ... + 43960458652.

It is an arithmetic number, because the mean of its divisors is an integer number (31255884755649).

Almost surely, 2^{166522210201198} is an apocalyptic number.

166522210201198 is a deficient number, since it is larger than the sum of its proper divisors (83524867843994).

166522210201198 is an equidigital number, since it uses as much as digits as its factorization.

166522210201198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87920914466.

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 166522210201198 in words is "one hundred sixty-six trillion, five hundred twenty-two billion, two hundred ten million, two hundred one thousand, one hundred ninety-eight".