164223344906 has 8 divisors (see below), whose sum is σ = 246719317284. Its totient is φ = 81983572480.

The previous prime is 164223344899. The next prime is 164223344977. The reversal of 164223344906 is 609443322461.

It can be written as a sum of positive squares in 2 ways, for example, as 108378565681 + 55844779225 = 329209^2 + 236315^2 .

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

It is a super-2 number, since 2×164223344906² (a number of 23 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 64048385 + ... + 64050948.

Almost surely, 2^164223344906 is an apocalyptic number.

164223344906 is a deficient number, since it is larger than the sum of its proper divisors (82495972378).

164223344906 is a wasteful number, since it uses less digits than its factorization.

164223344906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128099976.

The product of its (nonzero) digits is 746496, while the sum is 44.

The spelling of 164223344906 in words is "one hundred sixty-four billion, two hundred twenty-three million, three hundred forty-four thousand, nine hundred six".