166190116 has 6 divisors (see below), whose sum is σ = 290832710. Its totient is φ = 83095056.

The previous prime is 166190099. The next prime is 166190119. The reversal of 166190116 is 611091661.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 90326016 + 75864100 = 9504^2 + 8710^2 .

It is not an unprimeable number, because it can be changed into a prime (166190119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20773761 + ... + 20773768.

Almost surely, 2^166190116 is an apocalyptic number.

It is an amenable number.

166190116 is a deficient number, since it is larger than the sum of its proper divisors (124642594).

166190116 is a wasteful number, since it uses less digits than its factorization.

166190116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41547533 (or 41547531 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 166190116 is about 12891.4745471571. The cubic root of 166190116 is about 549.7961955633.

The spelling of 166190116 in words is "one hundred sixty-six million, one hundred ninety thousand, one hundred sixteen".