673555555376 has 80 divisors (see below), whose sum is σ = 1429006537728. Its totient is φ = 305011660800.

The previous prime is 673555555297. The next prime is 673555555417.

It is a happy number.

673555555376 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76475165 + ... + 76483971.

Almost surely, 2^673555555376 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 673555555376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714503268864).

673555555376 is an abundant number, since it is smaller than the sum of its proper divisors (755450982352).

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

673555555376 is a wasteful number, since it uses less digits than its factorization.

673555555376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10410 (or 10404 counting only the distinct ones).

The product of its digits is 248062500, while the sum is 62.

The spelling of 673555555376 in words is "six hundred seventy-three billion, five hundred fifty-five million, five hundred fifty-five thousand, three hundred seventy-six".