6681170457572 has 48 divisors (see below), whose sum is σ = 13334482757232. Its totient is φ = 2901711237120.

The previous prime is 6681170457557. The next prime is 6681170457653. The reversal of 6681170457572 is 2757540711866.

It can be written as a sum of positive squares in 8 ways, for example, as 2107072883776 + 4574097573796 = 1451576^2 + 2138714^2 .

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, 4316738 + ... + 5656550.

It is an arithmetic number, because the mean of its divisors is an integer number (277801724109).

Almost surely, 2^{6681170457572} is an apocalyptic number.

It is an amenable number.

6681170457572 is a deficient number, since it is larger than the sum of its proper divisors (6653312299660).

6681170457572 is a wasteful number, since it uses less digits than its factorization.

6681170457572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345488 (or 1345486 counting only the distinct ones).

The product of its (nonzero) digits is 19756800, while the sum is 59.

The spelling of 6681170457572 in words is "six trillion, six hundred eighty-one billion, one hundred seventy million, four hundred fifty-seven thousand, five hundred seventy-two".