164432866757 has 2 divisors, whose sum is σ = 164432866758. Its totient is φ = 164432866756.

The previous prime is 164432866729. The next prime is 164432866781. The reversal of 164432866757 is 757668234461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109692777601 + 54740089156 = 331199^2 + 233966^2 .

It is an emirp because it is prime and its reverse (757668234461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164432866757 - 2²² = 164428672453 is a prime.

It is a super-3 number, since 3×164432866757³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164432866696 and 164432866705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164432866727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82216433378 + 82216433379.

It is an arithmetic number, because the mean of its divisors is an integer number (82216433379).

Almost surely, 2^164432866757 is an apocalyptic number.

It is an amenable number.

164432866757 is a deficient number, since it is larger than the sum of its proper divisors (1).

164432866757 is an equidigital number, since it uses as much as digits as its factorization.

164432866757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40642560, while the sum is 59.

The spelling of 164432866757 in words is "one hundred sixty-four billion, four hundred thirty-two million, eight hundred sixty-six thousand, seven hundred fifty-seven".