6639577041 has 8 divisors (see below), whose sum is σ = 8964830080. Its totient is φ = 4370354352.

The previous prime is 6639577031. The next prime is 6639577051. The reversal of 6639577041 is 1407759366.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6639577031) and next prime (6639577051).

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

It is not a de Polignac number, because 6639577041 - 2⁷ = 6639576913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6639577031) 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, 14007310 + ... + 14007783.

It is an arithmetic number, because the mean of its divisors is an integer number (1120603760).

Almost surely, 2^6639577041 is an apocalyptic number.

It is an amenable number.

6639577041 is a deficient number, since it is larger than the sum of its proper divisors (2325253039).

6639577041 is a wasteful number, since it uses less digits than its factorization.

6639577041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28015175.

The product of its (nonzero) digits is 952560, while the sum is 48.

The square root of 6639577041 is about 81483.5998284317. The cubic root of 6639577041 is about 1879.5193656838.

The spelling of 6639577041 in words is "six billion, six hundred thirty-nine million, five hundred seventy-seven thousand, forty-one".