166120318 has 32 divisors (see below), whose sum is σ = 309141504. Its totient is φ = 65191392.

The previous prime is 166120313. The next prime is 166120337. The reversal of 166120318 is 813021661.

It is a super-2 number, since 2×166120318² = 55191920104842248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166120313) 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, 19521 + ... + 26707.

It is an arithmetic number, because the mean of its divisors is an integer number (9660672).

Almost surely, 2^166120318 is an apocalyptic number.

166120318 is a deficient number, since it is larger than the sum of its proper divisors (143021186).

166120318 is a wasteful number, since it uses less digits than its factorization.

166120318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7336.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 166120318 is about 12888.7671249038. The cubic root of 166120318 is about 549.7192153566.

Adding to 166120318 its reverse (813021661), we get a palindrome (979141979).

The spelling of 166120318 in words is "one hundred sixty-six million, one hundred twenty thousand, three hundred eighteen".