6621641080 has 32 divisors (see below), whose sum is σ = 14922817200. Its totient is φ = 2644367616.

The previous prime is 6621641057. The next prime is 6621641099. The reversal of 6621641080 is 801461266.

It is a super-2 number, since 2×6621641080² = 87692261184687132800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108957 + ... + 158476.

Almost surely, 2^6621641080 is an apocalyptic number.

It is an amenable number.

6621641080 is an abundant number, since it is smaller than the sum of its proper divisors (8301176120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6621641080 is a wasteful number, since it uses less digits than its factorization.

6621641080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268063 (or 268059 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 6621641080 is about 81373.4666829428. The cubic root of 6621641080 is about 1877.8254130537.

The spelling of 6621641080 in words is "six billion, six hundred twenty-one million, six hundred forty-one thousand, eighty".