164370566237 has 2 divisors, whose sum is σ = 164370566238. Its totient is φ = 164370566236.

The previous prime is 164370566233. The next prime is 164370566251. The reversal of 164370566237 is 732665073461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94240404196 + 70130162041 = 306986^2 + 264821^2 .

It is an emirp because it is prime and its reverse (732665073461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164370566237 - 2² = 164370566233 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164370566233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82185283118 + 82185283119.

It is an arithmetic number, because the mean of its divisors is an integer number (82185283119).

Almost surely, 2^164370566237 is an apocalyptic number.

It is an amenable number.

164370566237 is a deficient number, since it is larger than the sum of its proper divisors (1).

164370566237 is an equidigital number, since it uses as much as digits as its factorization.

164370566237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3810240, while the sum is 50.

The spelling of 164370566237 in words is "one hundred sixty-four billion, three hundred seventy million, five hundred sixty-six thousand, two hundred thirty-seven".