164618938 has 8 divisors (see below), whose sum is σ = 269376480. Its totient is φ = 74826780.

The previous prime is 164618911. The next prime is 164618941. The reversal of 164618938 is 839816461.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3741318 + ... + 3741361.

It is an arithmetic number, because the mean of its divisors is an integer number (33672060).

Almost surely, 2^164618938 is an apocalyptic number.

164618938 is a deficient number, since it is larger than the sum of its proper divisors (104757542).

164618938 is a wasteful number, since it uses less digits than its factorization.

164618938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7482692.

The product of its digits is 248832, while the sum is 46.

The square root of 164618938 is about 12830.3911865539. The cubic root of 164618938 is about 548.0580971847.

The spelling of 164618938 in words is "one hundred sixty-four million, six hundred eighteen thousand, nine hundred thirty-eight".