163541616 has 120 divisors (see below), whose sum is σ = 507538944. Its totient is φ = 45198720.

The previous prime is 163541611. The next prime is 163541629. The reversal of 163541616 is 616145361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163541611) 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, 71791 + ... + 74033.

Almost surely, 2^163541616 is an apocalyptic number.

163541616 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 163541616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253769472).

163541616 is an abundant number, since it is smaller than the sum of its proper divisors (343997328).

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

163541616 is a wasteful number, since it uses less digits than its factorization.

163541616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299 (or 2286 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 163541616 is about 12788.3390633811. The cubic root of 163541616 is about 546.8599204375.

Adding to 163541616 its reverse (616145361), we get a palindrome (779686977).

The spelling of 163541616 in words is "one hundred sixty-three million, five hundred forty-one thousand, six hundred sixteen".