164946811 has 4 divisors (see below), whose sum is σ = 164989800. Its totient is φ = 164903824.

The previous prime is 164946799. The next prime is 164946853. The reversal of 164946811 is 118649461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 118649461 = 7 ⋅16949923.

It is a cyclic number.

It is not a de Polignac number, because 164946811 - 2⁵ = 164946779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164946211) by changing a digit.

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, 15106 + ... + 23623.

It is an arithmetic number, because the mean of its divisors is an integer number (41247450).

Almost surely, 2^164946811 is an apocalyptic number.

164946811 is a deficient number, since it is larger than the sum of its proper divisors (42989).

164946811 is an equidigital number, since it uses as much as digits as its factorization.

164946811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42988.

The product of its digits is 41472, while the sum is 40.

The square root of 164946811 is about 12843.1620327706. The cubic root of 164946811 is about 548.4217132779.

The spelling of 164946811 in words is "one hundred sixty-four million, nine hundred forty-six thousand, eight hundred eleven".