164446752207 has 4 divisors (see below), whose sum is σ = 219262336280. Its totient is φ = 109631168136.

The previous prime is 164446752203. The next prime is 164446752221. The reversal of 164446752207 is 702257644461.

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

It is not a de Polignac number, because 164446752207 - 2² = 164446752203 is a prime.

It is a super-2 number, since 2×164446752207² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164446752203) 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, 27407792032 + ... + 27407792037.

It is an arithmetic number, because the mean of its divisors is an integer number (54815584070).

Almost surely, 2^164446752207 is an apocalyptic number.

164446752207 is a deficient number, since it is larger than the sum of its proper divisors (54815584073).

164446752207 is an equidigital number, since it uses as much as digits as its factorization.

164446752207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54815584072.

The product of its (nonzero) digits is 2257920, while the sum is 48.

The spelling of 164446752207 in words is "one hundred sixty-four billion, four hundred forty-six million, seven hundred fifty-two thousand, two hundred seven".