164454448 has 20 divisors (see below), whose sum is σ = 323388280. Its totient is φ = 80999424.

The previous prime is 164454421. The next prime is 164454461. The reversal of 164454448 is 844454461.

It is a self number, because there is not a number n which added to its sum of digits gives 164454448.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75633 + ... + 77776.

It is an arithmetic number, because the mean of its divisors is an integer number (16169414).

Almost surely, 2^164454448 is an apocalyptic number.

It is an amenable number.

164454448 is a deficient number, since it is larger than the sum of its proper divisors (158933832).

164454448 is a wasteful number, since it uses less digits than its factorization.

164454448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153484 (or 153478 counting only the distinct ones).

The product of its digits is 245760, while the sum is 40.

The square root of 164454448 is about 12823.9794135830. The cubic root of 164454448 is about 547.8754934076.

The spelling of 164454448 in words is "one hundred sixty-four million, four hundred fifty-four thousand, four hundred forty-eight".