164704349218 has 4 divisors (see below), whose sum is σ = 247056523830. Its totient is φ = 82352174608.

The previous prime is 164704349177. The next prime is 164704349219. The reversal of 164704349218 is 812943407461.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 145201388809 + 19502960409 = 381053^2 + 139653^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (164704349219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41176087303 + ... + 41176087306.

Almost surely, 2^164704349218 is an apocalyptic number.

164704349218 is a deficient number, since it is larger than the sum of its proper divisors (82352174612).

164704349218 is an equidigital number, since it uses as much as digits as its factorization.

164704349218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82352174611.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 164704349218 in words is "one hundred sixty-four billion, seven hundred four million, three hundred forty-nine thousand, two hundred eighteen".