164196645 has 16 divisors (see below), whose sum is σ = 264458112. Its totient is φ = 86990400.

The previous prime is 164196623. The next prime is 164196647. The reversal of 164196645 is 546691461.

It is not a de Polignac number, because 164196645 - 2⁹ = 164196133 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 164196597 and 164196606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164196647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33982 + ... + 38511.

It is an arithmetic number, because the mean of its divisors is an integer number (16528632).

Almost surely, 2^164196645 is an apocalyptic number.

164196645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164196645 is a deficient number, since it is larger than the sum of its proper divisors (100261467).

164196645 is a wasteful number, since it uses less digits than its factorization.

164196645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72652.

The product of its digits is 155520, while the sum is 42.

The square root of 164196645 is about 12813.9238721010. The cubic root of 164196645 is about 547.5890557998.

The spelling of 164196645 in words is "one hundred sixty-four million, one hundred ninety-six thousand, six hundred forty-five".