173316049920 has 1760 divisors, whose sum is σ = 743013444096. Its totient is φ = 38220595200.

The previous prime is 173316049741. The next prime is 173316049927. The reversal of 173316049920 is 29940613371.

173316049920 is a `hidden beast` number, since 1 + 7 + 3 + 31 + 604 + 9 + 9 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (173316049927) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2841246690 + ... + 2841246750.

Almost surely, 2^173316049920 is an apocalyptic number.

173316049920 is a gapful number since it is divisible by the number (10) 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 173316049920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371506722048).

173316049920 is an abundant number, since it is smaller than the sum of its proper divisors (569697394176).

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

173316049920 is a wasteful number, since it uses less digits than its factorization.

173316049920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 173316049920 in words is "one hundred seventy-three billion, three hundred sixteen million, forty-nine thousand, nine hundred twenty".