163461724416 has 81 divisors (see below), whose sum is σ = 471356409979. Its totient is φ = 54480772608.

The previous prime is 163461724411. The next prime is 163461724451. The reversal of 163461724416 is 614427164361.

The square root of 163461724416 is 404304.

It is a perfect power (a square), and thus also a powerful number.

163461724416 is a `hidden beast` number, since 1 + 6 + 3 + 4 + 617 + 24 + 4 + 1 + 6 = 666.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163461724411) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 19402381 + ... + 19410803.

Almost surely, 2^163461724416 is an apocalyptic number.

163461724416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

163461724416 is the 404304-th square number.

It is an amenable number.

163461724416 is an abundant number, since it is smaller than the sum of its proper divisors (307894685563).

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

163461724416 is an frugal number, since it uses more digits than its factorization.

163461724416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16868 (or 8428 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

Adding to 163461724416 its reverse (614427164361), we get a palindrome (777888888777).

The spelling of 163461724416 in words is "one hundred sixty-three billion, four hundred sixty-one million, seven hundred twenty-four thousand, four hundred sixteen".