671546645176 has 64 divisors (see below), whose sum is σ = 1401658272000. Its totient is φ = 299072736000.

The previous prime is 671546645137. The next prime is 671546645177.

It is a happy number.

671546645176 is nontrivially palindromic in base 10.

671546645176 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 671546645176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671546645177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 623875 + ... + 1316173.

It is an arithmetic number, because the mean of its divisors is an integer number (21900910500).

Almost surely, 2^671546645176 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 671546645176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (700829136000).

671546645176 is an abundant number, since it is smaller than the sum of its proper divisors (730111626824).

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

671546645176 is a wasteful number, since it uses less digits than its factorization.

671546645176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692540 (or 692536 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 58.

The spelling of 671546645176 in words is "six hundred seventy-one billion, five hundred forty-six million, six hundred forty-five thousand, one hundred seventy-six".