66164205 has 8 divisors (see below), whose sum is σ = 105862752. Its totient is φ = 35287568.

The previous prime is 66164183. The next prime is 66164239. The reversal of 66164205 is 50246166.

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

It is a cyclic number.

It is not a de Polignac number, because 66164205 - 2⁶ = 66164141 is a prime.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2205459 + ... + 2205488.

It is an arithmetic number, because the mean of its divisors is an integer number (13232844).

Almost surely, 2^66164205 is an apocalyptic number.

It is an amenable number.

66164205 is a deficient number, since it is larger than the sum of its proper divisors (39698547).

66164205 is a wasteful number, since it uses less digits than its factorization.

66164205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4410955.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 66164205 is about 8134.1382456902. The cubic root of 66164205 is about 404.4588718846.

The spelling of 66164205 in words is "sixty-six million, one hundred sixty-four thousand, two hundred five".