664165341 has 12 divisors (see below), whose sum is σ = 1096400032. Its totient is φ = 379523016.

The previous prime is 664165309. The next prime is 664165351. The reversal of 664165341 is 143561466.

It is a happy number.

664165341 is a `hidden beast` number, since 6 + 641 + 6 + 5 + 3 + 4 + 1 = 666.

It is not a de Polignac number, because 664165341 - 2⁵ = 664165309 is a prime.

It is a super-2 number, since 2×664165341² = 882231200371292562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 664165296 and 664165305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664165351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5271091 + ... + 5271216.

Almost surely, 2^664165341 is an apocalyptic number.

It is an amenable number.

664165341 is a deficient number, since it is larger than the sum of its proper divisors (432234691).

664165341 is a wasteful number, since it uses less digits than its factorization.

664165341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10542320 (or 10542317 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 664165341 is about 25771.4054913581. The cubic root of 664165341 is about 872.4865408443.

The spelling of 664165341 in words is "six hundred sixty-four million, one hundred sixty-five thousand, three hundred forty-one".