671062135120 has 160 divisors (see below), whose sum is σ = 1701431101440. Its totient is φ = 244670484480.

The previous prime is 671062135043. The next prime is 671062135123. The reversal of 671062135120 is 21531260176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671062135123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27201351 + ... + 27226009.

It is an arithmetic number, because the mean of its divisors is an integer number (10633944384).

Almost surely, 2^671062135120 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 671062135120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (850715550720).

671062135120 is an abundant number, since it is smaller than the sum of its proper divisors (1030368966320).

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

671062135120 is a wasteful number, since it uses less digits than its factorization.

671062135120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25013 (or 25007 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

Adding to 671062135120 its reverse (21531260176), we get a palindrome (692593395296).

The spelling of 671062135120 in words is "six hundred seventy-one billion, sixty-two million, one hundred thirty-five thousand, one hundred twenty".