164650811 has 16 divisors (see below), whose sum is σ = 179928000. Its totient is φ = 149766528.

The previous prime is 164650781. The next prime is 164650819. The reversal of 164650811 is 118056461.

It is a cyclic number.

It is not a de Polignac number, because 164650811 - 2⁶ = 164650747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164650819) 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, 323225 + ... + 323733.

It is an arithmetic number, because the mean of its divisors is an integer number (11245500).

Almost surely, 2^164650811 is an apocalyptic number.

164650811 is a deficient number, since it is larger than the sum of its proper divisors (15277189).

164650811 is a wasteful number, since it uses less digits than its factorization.

164650811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 164650811 is about 12831.6332163914. The cubic root of 164650811 is about 548.0934659960.

The spelling of 164650811 in words is "one hundred sixty-four million, six hundred fifty thousand, eight hundred eleven".