166118542 has 8 divisors (see below), whose sum is σ = 250555032. Its totient is φ = 82600200.

The previous prime is 166118531. The next prime is 166118551. The reversal of 166118542 is 245811661.

166118542 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 166118498 and 166118507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229084 + ... + 229807.

It is an arithmetic number, because the mean of its divisors is an integer number (31319379).

Almost surely, 2^166118542 is an apocalyptic number.

166118542 is a deficient number, since it is larger than the sum of its proper divisors (84436490).

166118542 is a wasteful number, since it uses less digits than its factorization.

166118542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459074.

The product of its digits is 11520, while the sum is 34.

The square root of 166118542 is about 12888.6982275170. The cubic root of 166118542 is about 549.7172563251.

The spelling of 166118542 in words is "one hundred sixty-six million, one hundred eighteen thousand, five hundred forty-two".