164038866 has 8 divisors (see below), whose sum is σ = 328077744. Its totient is φ = 54679620.

The previous prime is 164038843. The next prime is 164038867. The reversal of 164038866 is 668830461.

It is a happy number.

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

164038866 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (164038867) 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, 13669900 + ... + 13669911.

It is an arithmetic number, because the mean of its divisors is an integer number (41009718).

Almost surely, 2^164038866 is an apocalyptic number.

164038866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164038866 is a wasteful number, since it uses less digits than its factorization.

164038866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27339816.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 164038866 is about 12807.7658473287. The cubic root of 164038866 is about 547.4136040985.

The spelling of 164038866 in words is "one hundred sixty-four million, thirty-eight thousand, eight hundred sixty-six".