166086838 has 8 divisors (see below), whose sum is σ = 263785032. Its totient is φ = 78158496.

The previous prime is 166086797. The next prime is 166086839. The reversal of 166086838 is 838680661.

It is a happy number.

166086838 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (166086839) 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, 2442420 + ... + 2442487.

It is an arithmetic number, because the mean of its divisors is an integer number (32973129).

Almost surely, 2^166086838 is an apocalyptic number.

166086838 is a deficient number, since it is larger than the sum of its proper divisors (97698194).

166086838 is a wasteful number, since it uses less digits than its factorization.

166086838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884926.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 166086838 is about 12887.4682540831. The cubic root of 166086838 is about 549.6822826159.

The spelling of 166086838 in words is "one hundred sixty-six million, eighty-six thousand, eight hundred thirty-eight".