163679616 has 80 divisors (see below), whose sum is σ = 487138740. Its totient is φ = 54556416.

The previous prime is 163679609. The next prime is 163679627. The reversal of 163679616 is 616976361.

163679616 is a `hidden beast` number, since 1 + 636 + 7 + 9 + 6 + 1 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2475 + ... + 18261.

Almost surely, 2^163679616 is an apocalyptic number.

163679616 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 163679616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243569370).

163679616 is an abundant number, since it is smaller than the sum of its proper divisors (323459124).

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

163679616 is an equidigital number, since it uses as much as digits as its factorization.

163679616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15813 (or 15792 counting only the distinct ones).

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

The square root of 163679616 is about 12793.7334660372. The cubic root of 163679616 is about 547.0136946552.

The spelling of 163679616 in words is "one hundred sixty-three million, six hundred seventy-nine thousand, six hundred sixteen".