164404488668 has 48 divisors (see below), whose sum is σ = 338256414720. Its totient is φ = 68456505216.

The previous prime is 164404488667. The next prime is 164404488673. The reversal of 164404488668 is 866884404461.

It is a happy number.

164404488668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×164404488668³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164404488667) 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, 275648 + ... + 636231.

It is an arithmetic number, because the mean of its divisors is an integer number (7047008640).

Almost surely, 2^164404488668 is an apocalyptic number.

It is an amenable number.

164404488668 is an abundant number, since it is smaller than the sum of its proper divisors (173851926052).

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

164404488668 is a wasteful number, since it uses less digits than its factorization.

164404488668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912074 (or 912072 counting only the distinct ones).

The product of its (nonzero) digits is 28311552, while the sum is 59.

The spelling of 164404488668 in words is "one hundred sixty-four billion, four hundred four million, four hundred eighty-eight thousand, six hundred sixty-eight".