671113552646 has 8 divisors (see below), whose sum is σ = 1030081266984. Its totient is φ = 327753130320.

The previous prime is 671113552609. The next prime is 671113552679. The reversal of 671113552646 is 646255311176.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 671113552646.

It is a congruent number.

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, 3901822895 + ... + 3901823066.

It is an arithmetic number, because the mean of its divisors is an integer number (128760158373).

Almost surely, 2^671113552646 is an apocalyptic number.

671113552646 is a deficient number, since it is larger than the sum of its proper divisors (358967714338).

671113552646 is a wasteful number, since it uses less digits than its factorization.

671113552646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7803646006.

The product of its digits is 907200, while the sum is 47.

The spelling of 671113552646 in words is "six hundred seventy-one billion, one hundred thirteen million, five hundred fifty-two thousand, six hundred forty-six".