164203306564 has 24 divisors (see below), whose sum is σ = 320769253728. Its totient is φ = 72902101440.

The previous prime is 164203306549. The next prime is 164203306583. The reversal of 164203306564 is 465603302461.

It is a happy number.

164203306564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 43392217 + ... + 43396000.

It is an arithmetic number, because the mean of its divisors is an integer number (13365385572).

Almost surely, 2^164203306564 is an apocalyptic number.

It is an amenable number.

164203306564 is a deficient number, since it is larger than the sum of its proper divisors (156565947164).

164203306564 is a wasteful number, since it uses less digits than its factorization.

164203306564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86788275 (or 86788273 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 164203306564 in words is "one hundred sixty-four billion, two hundred three million, three hundred six thousand, five hundred sixty-four".