164660203 has 4 divisors (see below), whose sum is σ = 164686288. Its totient is φ = 164634120.

The previous prime is 164660179. The next prime is 164660219. The reversal of 164660203 is 302066461.

164660203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 302066461 = 2551 ⋅118411.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164660203 is a prime.

It is a super-2 number, since 2×164660203² = 54225964904002418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164660263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3025 + ... + 18397.

It is an arithmetic number, because the mean of its divisors is an integer number (41171572).

Almost surely, 2^164660203 is an apocalyptic number.

164660203 is a deficient number, since it is larger than the sum of its proper divisors (26085).

164660203 is a wasteful number, since it uses less digits than its factorization.

164660203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26084.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 164660203 is about 12831.9991817331. Note that the first 3 decimals coincide. The cubic root of 164660203 is about 548.1038872342.

The spelling of 164660203 in words is "one hundred sixty-four million, six hundred sixty thousand, two hundred three".