673557227520 has 192 divisors, whose sum is σ = 2175006375360. Its totient is φ = 177935745024.

The previous prime is 673557227509. The next prime is 673557227533. The reversal of 673557227520 is 25722755376.

It is a tau number, because it is divible by the number of its divisors (192).

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, 3184584 + ... + 3389496.

It is an arithmetic number, because the mean of its divisors is an integer number (11328158205).

Almost surely, 2^673557227520 is an apocalyptic number.

673557227520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673557227520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1087503187680).

673557227520 is an abundant number, since it is smaller than the sum of its proper divisors (1501449147840).

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

673557227520 is a wasteful number, since it uses less digits than its factorization.

673557227520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205050 (or 205030 counting only the distinct ones).

The product of its (nonzero) digits is 6174000, while the sum is 51.

The spelling of 673557227520 in words is "six hundred seventy-three billion, five hundred fifty-seven million, two hundred twenty-seven thousand, five hundred twenty".