164684811 has 8 divisors (see below), whose sum is σ = 223179664. Its totient is φ = 107989920.

The previous prime is 164684809. The next prime is 164684857. The reversal of 164684811 is 118486461.

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

It is not a de Polignac number, because 164684811 - 2¹ = 164684809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164684811.

It is not an unprimeable number, because it can be changed into a prime (164684801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449776 + ... + 450141.

It is an arithmetic number, because the mean of its divisors is an integer number (27897458).

Almost surely, 2^164684811 is an apocalyptic number.

164684811 is a deficient number, since it is larger than the sum of its proper divisors (58494853).

164684811 is an equidigital number, since it uses as much as digits as its factorization.

164684811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899981.

The product of its digits is 36864, while the sum is 39.

The square root of 164684811 is about 12832.9579988403. The cubic root of 164684811 is about 548.1311900642.

The spelling of 164684811 in words is "one hundred sixty-four million, six hundred eighty-four thousand, eight hundred eleven".