671555604470 has 32 divisors (see below), whose sum is σ = 1229195406816. Its totient is φ = 264094099200.

The previous prime is 671555604451. The next prime is 671555604529. The reversal of 671555604470 is 74406555176.

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, 1041602 + ... + 1558218.

It is an arithmetic number, because the mean of its divisors is an integer number (38412356463).

Almost surely, 2^671555604470 is an apocalyptic number.

671555604470 is a deficient number, since it is larger than the sum of its proper divisors (557639802346).

671555604470 is a wasteful number, since it uses less digits than its factorization.

671555604470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518816.

The product of its (nonzero) digits is 3528000, while the sum is 50.

The spelling of 671555604470 in words is "six hundred seventy-one billion, five hundred fifty-five million, six hundred four thousand, four hundred seventy".