664800164106 has 32 divisors (see below), whose sum is σ = 1455350684928. Its totient is φ = 201200552640.

The previous prime is 664800163997. The next prime is 664800164107. The reversal of 664800164106 is 601461008466.

It is a super-3 number, since 3×664800164106³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (664800164107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69856546 + ... + 69866061.

It is an arithmetic number, because the mean of its divisors is an integer number (45479708904).

Almost surely, 2^664800164106 is an apocalyptic number.

664800164106 is an abundant number, since it is smaller than the sum of its proper divisors (790550520822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

664800164106 is a wasteful number, since it uses less digits than its factorization.

664800164106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139722686.

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 664800164106 in words is "six hundred sixty-four billion, eight hundred million, one hundred sixty-four thousand, one hundred six".