673161216 has 336 divisors, whose sum is σ = 2300959584. Its totient is φ = 173408256.

The previous prime is 673161211. The next prime is 673161233. The reversal of 673161216 is 612161376.

It is a tau number, because it is divible by the number of its divisors (336).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (673161211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15654891 + ... + 15654933.

It is an arithmetic number, because the mean of its divisors is an integer number (6848094).

Almost surely, 2^673161216 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 673161216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1150479792).

673161216 is an abundant number, since it is smaller than the sum of its proper divisors (1627798368).

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

673161216 is a wasteful number, since it uses less digits than its factorization.

673161216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 68 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 673161216 is about 25945.3505661419. The cubic root of 673161216 is about 876.4080582573.

The spelling of 673161216 in words is "six hundred seventy-three million, one hundred sixty-one thousand, two hundred sixteen".