671141444076 has 144 divisors (see below), whose sum is σ = 1777505670304. Its totient is φ = 213313471488.

The previous prime is 671141444059. The next prime is 671141444087. The reversal of 671141444076 is 670444141176.

671141444076 is a `hidden beast` number, since 67 + 1 + 141 + 4 + 440 + 7 + 6 = 666.

671141444076 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15244071 + ... + 15288033.

Almost surely, 2^671141444076 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671141444076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (888752835152).

671141444076 is an abundant number, since it is smaller than the sum of its proper divisors (1106364226228).

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

671141444076 is a wasteful number, since it uses less digits than its factorization.

671141444076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44240 (or 44235 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 671141444076 in words is "six hundred seventy-one billion, one hundred forty-one million, four hundred forty-four thousand, seventy-six".