6671164521 has 8 divisors (see below), whose sum is σ = 10165584064. Its totient is φ = 3812094000.

The previous prime is 6671164517. The next prime is 6671164561. The reversal of 6671164521 is 1254611766.

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

It is not a de Polignac number, because 6671164521 - 2² = 6671164517 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6671164521.

It is not an unprimeable number, because it can be changed into a prime (6671164501) 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, 158837230 + ... + 158837271.

It is an arithmetic number, because the mean of its divisors is an integer number (1270698008).

Almost surely, 2^6671164521 is an apocalyptic number.

It is an amenable number.

6671164521 is a deficient number, since it is larger than the sum of its proper divisors (3494419543).

6671164521 is a wasteful number, since it uses less digits than its factorization.

6671164521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317674511.

The product of its digits is 60480, while the sum is 39.

The square root of 6671164521 is about 81677.1970687046. The cubic root of 6671164521 is about 1882.4952269067.

The spelling of 6671164521 in words is "six billion, six hundred seventy-one million, one hundred sixty-four thousand, five hundred twenty-one".