164504630266 has 4 divisors (see below), whose sum is σ = 246756945402. Its totient is φ = 82252315132.

The previous prime is 164504630261. The next prime is 164504630273. The reversal of 164504630266 is 662036405461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 662036405461 = 13649 ⋅48504389.

It can be written as a sum of positive squares in only one way, i.e., 130216331025 + 34288299241 = 360855^2 + 185171^2 .

It is not an unprimeable number, because it can be changed into a prime (164504630261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41126157565 + ... + 41126157568.

Almost surely, 2^164504630266 is an apocalyptic number.

164504630266 is a deficient number, since it is larger than the sum of its proper divisors (82252315136).

164504630266 is an equidigital number, since it uses as much as digits as its factorization.

164504630266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82252315135.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 164504630266 in words is "one hundred sixty-four billion, five hundred four million, six hundred thirty thousand, two hundred sixty-six".