6480173556 has 48 divisors (see below), whose sum is σ = 16808937600. Its totient is φ = 2158966656.

The previous prime is 6480173519. The next prime is 6480173563. The reversal of 6480173556 is 6553710846.

6480173556 is a `hidden beast` number, since 6 + 4 + 80 + 17 + 3 + 556 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215841 + ... + 244023.

It is an arithmetic number, because the mean of its divisors is an integer number (350186200).

Almost surely, 2^6480173556 is an apocalyptic number.

It is an amenable number.

6480173556 is an abundant number, since it is smaller than the sum of its proper divisors (10328764044).

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

6480173556 is a wasteful number, since it uses less digits than its factorization.

6480173556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30325 (or 30317 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 6480173556 is about 80499.5251911463. The cubic root of 6480173556 is about 1864.3561478325.

The spelling of 6480173556 in words is "six billion, four hundred eighty million, one hundred seventy-three thousand, five hundred fifty-six".