164930866 has 4 divisors (see below), whose sum is σ = 247396302. Its totient is φ = 82465432.

The previous prime is 164930827. The next prime is 164930873. The reversal of 164930866 is 668039461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 668039461 = 1129 ⋅591709.

It can be written as a sum of positive squares in only one way, i.e., 164480625 + 450241 = 12825^2 + 671^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41232715 + ... + 41232718.

Almost surely, 2^164930866 is an apocalyptic number.

164930866 is a deficient number, since it is larger than the sum of its proper divisors (82465436).

164930866 is an equidigital number, since it uses as much as digits as its factorization.

164930866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82465435.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 164930866 is about 12842.5412594237. The cubic root of 164930866 is about 548.4040411852.

The spelling of 164930866 in words is "one hundred sixty-four million, nine hundred thirty thousand, eight hundred sixty-six".