164968845 has 16 divisors (see below), whose sum is σ = 265118400. Its totient is φ = 87593984.

The previous prime is 164968751. The next prime is 164968847. The reversal of 164968845 is 548869461.

It is a cyclic number.

It is not a de Polignac number, because 164968845 - 2⁷ = 164968717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164968847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20820 + ... + 27629.

It is an arithmetic number, because the mean of its divisors is an integer number (16569900).

Almost surely, 2^164968845 is an apocalyptic number.

164968845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164968845 is a deficient number, since it is larger than the sum of its proper divisors (100149555).

164968845 is a wasteful number, since it uses less digits than its factorization.

164968845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48684.

The product of its digits is 1658880, while the sum is 51.

The square root of 164968845 is about 12844.0198146842. The cubic root of 164968845 is about 548.4461320303.

The spelling of 164968845 in words is "one hundred sixty-four million, nine hundred sixty-eight thousand, eight hundred forty-five".