664176341 has 2 divisors, whose sum is σ = 664176342. Its totient is φ = 664176340.

The previous prime is 664176329. The next prime is 664176347. The reversal of 664176341 is 143671466.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 597998116 + 66178225 = 24454^2 + 8135^2 .

It is a cyclic number.

It is not a de Polignac number, because 664176341 - 2⁶ = 664176277 is a prime.

It is a super-2 number, since 2×664176341² = 882260423888296562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 664176295 and 664176304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (664176347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332088170 + 332088171.

It is an arithmetic number, because the mean of its divisors is an integer number (332088171).

Almost surely, 2^664176341 is an apocalyptic number.

It is an amenable number.

664176341 is a deficient number, since it is larger than the sum of its proper divisors (1).

664176341 is an equidigital number, since it uses as much as digits as its factorization.

664176341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 664176341 is about 25771.6189052997. The cubic root of 664176341 is about 872.4913575661.

The spelling of 664176341 in words is "six hundred sixty-four million, one hundred seventy-six thousand, three hundred forty-one".