668671041 has 8 divisors (see below), whose sum is σ = 891700864. Its totient is φ = 445710960.

The previous prime is 668671039. The next prime is 668671043. The reversal of 668671041 is 140176866.

It is a happy number.

668671041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (668671039) and next prime (668671043).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 668671041 - 2¹ = 668671039 is a prime.

It is a super-2 number, since 2×668671041² = 894241922144047362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (668671043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12075 + ... + 38511.

It is an arithmetic number, because the mean of its divisors is an integer number (111462608).

Almost surely, 2^668671041 is an apocalyptic number.

It is an amenable number.

668671041 is a deficient number, since it is larger than the sum of its proper divisors (223029823).

668671041 is a wasteful number, since it uses less digits than its factorization.

668671041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34871.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 668671041 is about 25858.6743859773. The cubic root of 668671041 is about 874.4550799237.

The spelling of 668671041 in words is "six hundred sixty-eight million, six hundred seventy-one thousand, forty-one".