164642006 has 4 divisors (see below), whose sum is σ = 246963012. Its totient is φ = 82321002.

The previous prime is 164642003. The next prime is 164642021. The reversal of 164642006 is 600246461.

164642006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 164642006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164642003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41160500 + ... + 41160503.

It is an arithmetic number, because the mean of its divisors is an integer number (61740753).

Almost surely, 2^164642006 is an apocalyptic number.

164642006 is a deficient number, since it is larger than the sum of its proper divisors (82321006).

164642006 is an equidigital number, since it uses as much as digits as its factorization.

164642006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82321005.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 164642006 is about 12831.2901144039. The cubic root of 164642006 is about 548.0836957253.

Adding to 164642006 its reverse (600246461), we get a palindrome (764888467).

The spelling of 164642006 in words is "one hundred sixty-four million, six hundred forty-two thousand, six".