673363556496 has 180 divisors, whose sum is σ = 1999539469200. Its totient is φ = 210952957824.

The previous prime is 673363556483. The next prime is 673363556497. The reversal of 673363556496 is 694655363376.

It is a happy number.

673363556496 is a `hidden beast` number, since 6 + 7 + 3 + 3 + 63 + 5 + 564 + 9 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (673363556497) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 44121315 + ... + 44136573.

Almost surely, 2^673363556496 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 673363556496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (999769734600).

673363556496 is an abundant number, since it is smaller than the sum of its proper divisors (1326175912704).

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

673363556496 is a wasteful number, since it uses less digits than its factorization.

673363556496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15546 (or 15410 counting only the distinct ones).

The product of its digits is 220449600, while the sum is 63.

The spelling of 673363556496 in words is "six hundred seventy-three billion, three hundred sixty-three million, five hundred fifty-six thousand, four hundred ninety-six".