664159041 has 128 divisors (see below), whose sum is σ = 1309593600. Its totient is φ = 322859520.

The previous prime is 664159039. The next prime is 664159049. The reversal of 664159041 is 140951466.

664159041 is a `hidden beast` number, since 6 + 64 + 1 + 590 + 4 + 1 = 666.

It is not a de Polignac number, because 664159041 - 2¹ = 664159039 is a prime.

It is a super-2 number, since 2×664159041² = 882214463484079362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 664158987 and 664159005.

It is not an unprimeable number, because it can be changed into a prime (664159049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1913830 + ... + 1914176.

It is an arithmetic number, because the mean of its divisors is an integer number (10231200).

Almost surely, 2^664159041 is an apocalyptic number.

It is an amenable number.

664159041 is a deficient number, since it is larger than the sum of its proper divisors (645434559).

664159041 is a wasteful number, since it uses less digits than its factorization.

664159041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 664159041 is about 25771.2832625774. The cubic root of 664159041 is about 872.4837821524.

The spelling of 664159041 in words is "six hundred sixty-four million, one hundred fifty-nine thousand, forty-one".