671555752624 has 20 divisors (see below), whose sum is σ = 1302222687880. Its totient is φ = 335498284800.

The previous prime is 671555752619. The next prime is 671555752661. The reversal of 671555752624 is 426257555176.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17454654 + ... + 17493085.

It is an arithmetic number, because the mean of its divisors is an integer number (65111134394).

Almost surely, 2^671555752624 is an apocalyptic number.

It is an amenable number.

671555752624 is a deficient number, since it is larger than the sum of its proper divisors (630666935256).

671555752624 is a wasteful number, since it uses less digits than its factorization.

671555752624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34948948 (or 34948942 counting only the distinct ones).

The product of its digits is 17640000, while the sum is 55.

The spelling of 671555752624 in words is "six hundred seventy-one billion, five hundred fifty-five million, seven hundred fifty-two thousand, six hundred twenty-four".