164391608 has 8 divisors (see below), whose sum is σ = 308234280. Its totient is φ = 82195800.

The previous prime is 164391607. The next prime is 164391613. The reversal of 164391608 is 806193461.

164391608 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164391607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10274468 + ... + 10274483.

It is an arithmetic number, because the mean of its divisors is an integer number (38529285).

Almost surely, 2^164391608 is an apocalyptic number.

It is an amenable number.

164391608 is a deficient number, since it is larger than the sum of its proper divisors (143842672).

164391608 is a wasteful number, since it uses less digits than its factorization.

164391608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20548957 (or 20548953 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 164391608 is about 12821.5290819777. The cubic root of 164391608 is about 547.8057012705.

The spelling of 164391608 in words is "one hundred sixty-four million, three hundred ninety-one thousand, six hundred eight".