161463081960576 has 512 divisors, whose sum is σ = 535835618841600. Its totient is φ = 47441440972800.

The previous prime is 161463081960563. The next prime is 161463081960581. The reversal of 161463081960576 is 675069180364161.

It is a happy number.

161463081960576 is a `hidden beast` number, since 1 + 6 + 1 + 4 + 6 + 3 + 0 + 8 + 19 + 605 + 7 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 223591771 + ... + 224312741.

It is an arithmetic number, because the mean of its divisors is an integer number (1046553943050).

Almost surely, 2^{161463081960576} is an apocalyptic number.

161463081960576 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 161463081960576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267917809420800).

161463081960576 is an abundant number, since it is smaller than the sum of its proper divisors (374372536881024).

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

161463081960576 is a wasteful number, since it uses less digits than its factorization.

161463081960576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721185 (or 721167 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 63.

The spelling of 161463081960576 in words is "one hundred sixty-one trillion, four hundred sixty-three billion, eighty-one million, nine hundred sixty thousand, five hundred seventy-six".