671608365042 has 8 divisors (see below), whose sum is σ = 1343216730096. Its totient is φ = 223869455012.

The previous prime is 671608365023. The next prime is 671608365079. The reversal of 671608365042 is 240563806176.

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

671608365042 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 671608364982 and 671608365000.

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, 55967363748 + ... + 55967363759.

It is an arithmetic number, because the mean of its divisors is an integer number (167902091262).

Almost surely, 2^671608365042 is an apocalyptic number.

671608365042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

671608365042 is a wasteful number, since it uses less digits than its factorization.

671608365042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111934727512.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 671608365042 in words is "six hundred seventy-one billion, six hundred eight million, three hundred sixty-five thousand, forty-two".