166222113 has 16 divisors (see below), whose sum is σ = 230448000. Its totient is φ = 106444800.

The previous prime is 166222087. The next prime is 166222117. The reversal of 166222113 is 311222661.

It is not a de Polignac number, because 166222113 - 2¹⁰ = 166221089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166222117) 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, 12513 + ... + 22113.

It is an arithmetic number, because the mean of its divisors is an integer number (14403000).

Almost surely, 2^166222113 is an apocalyptic number.

It is an amenable number.

166222113 is a deficient number, since it is larger than the sum of its proper divisors (64225887).

166222113 is a wasteful number, since it uses less digits than its factorization.

166222113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9832.

The product of its digits is 864, while the sum is 24.

The square root of 166222113 is about 12892.7155013985. The cubic root of 166222113 is about 549.8314778460.

Adding to 166222113 its reverse (311222661), we get a palindrome (477444774).

The spelling of 166222113 in words is "one hundred sixty-six million, two hundred twenty-two thousand, one hundred thirteen".