163005504303616 has 240 divisors, whose sum is σ = 363032996990400. Its totient is φ = 73032604729344.

The previous prime is 163005504303583. The next prime is 163005504303617. The reversal of 163005504303616 is 616303405500361.

It is a happy number.

It is a super-2 number, since 2×163005504303616² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163005504303617) 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, 1405416315 + ... + 1405532293.

It is an arithmetic number, because the mean of its divisors is an integer number (1512637487460).

Almost surely, 2^{163005504303616} is an apocalyptic number.

163005504303616 is a gapful number since it is divisible by the number (16) 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 163005504303616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181516498495200).

163005504303616 is an abundant number, since it is smaller than the sum of its proper divisors (200027492686784).

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

163005504303616 is a wasteful number, since it uses less digits than its factorization.

163005504303616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116499 (or 116470 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 43.

Adding to 163005504303616 its reverse (616303405500361), we get a palindrome (779308909803977).

The spelling of 163005504303616 in words is "one hundred sixty-three trillion, five billion, five hundred four million, three hundred three thousand, six hundred sixteen".