671066086044 has 48 divisors (see below), whose sum is σ = 1591553965568. Its totient is φ = 220022466048.

The previous prime is 671066086003. The next prime is 671066086051. The reversal of 671066086044 is 440680660176.

It is a junction number, because it is equal to n+sod(n) for n = 671066085984 and 671066086002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79012 + ... + 1161195.

Almost surely, 2^671066086044 is an apocalyptic number.

It is an amenable number.

671066086044 is an abundant number, since it is smaller than the sum of its proper divisors (920487879524).

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

671066086044 is a wasteful number, since it uses less digits than its factorization.

671066086044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240954 (or 1240952 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 671066086044 in words is "six hundred seventy-one billion, sixty-six million, eighty-six thousand, forty-four".