164643022 has 4 divisors (see below), whose sum is σ = 246964536. Its totient is φ = 82321510.

The previous prime is 164643019. The next prime is 164643023. The reversal of 164643022 is 220346461.

164643022 is digitally balanced in base 3, 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 an emirpimes, since its reverse is a distinct semiprime: 220346461 = 97 ⋅2271613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164643023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41160754 + ... + 41160757.

It is an arithmetic number, because the mean of its divisors is an integer number (61741134).

Almost surely, 2^164643022 is an apocalyptic number.

164643022 is a deficient number, since it is larger than the sum of its proper divisors (82321514).

164643022 is an equidigital number, since it uses as much as digits as its factorization.

164643022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82321513.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 164643022 is about 12831.3297050617. The cubic root of 164643022 is about 548.0848231246.

Adding to 164643022 its reverse (220346461), we get a palindrome (384989483).

The spelling of 164643022 in words is "one hundred sixty-four million, six hundred forty-three thousand, twenty-two".