164406605 has 8 divisors (see below), whose sum is σ = 215223264. Its totient is φ = 119568400.

The previous prime is 164406581. The next prime is 164406617. The reversal of 164406605 is 506604461.

164406605 is digitally balanced in base 2, because in such base 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 not a de Polignac number, because 164406605 - 2⁸ = 164406349 is a prime.

It is a super-3 number, since 3×164406605³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1494551 + ... + 1494660.

It is an arithmetic number, because the mean of its divisors is an integer number (26902908).

Almost surely, 2^164406605 is an apocalyptic number.

It is an amenable number.

164406605 is a deficient number, since it is larger than the sum of its proper divisors (50816659).

164406605 is a wasteful number, since it uses less digits than its factorization.

164406605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989227.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 164406605 is about 12822.1139052810. The cubic root of 164406605 is about 547.8223590395.

The spelling of 164406605 in words is "one hundred sixty-four million, four hundred six thousand, six hundred five".