671606513501200 has 120 divisors (see below), whose sum is σ = 1628367681617600. Its totient is φ = 266173096481280.

The previous prime is 671606513501177. The next prime is 671606513501227. The reversal of 671606513501200 is 2105315606176.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3195905731 + ... + 3196115869.

Almost surely, 2^{671606513501200} 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 671606513501200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (814183840808800).

671606513501200 is an abundant number, since it is smaller than the sum of its proper divisors (956761168116400).

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

671606513501200 is a wasteful number, since it uses less digits than its factorization.

671606513501200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283569 (or 283558 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 671606513501200 in words is "six hundred seventy-one trillion, six hundred six billion, five hundred thirteen million, five hundred one thousand, two hundred".