163416643 has 8 divisors (see below), whose sum is σ = 176107568. Its totient is φ = 150742944.

The previous prime is 163416637. The next prime is 163416661. The reversal of 163416643 is 346614361.

163416643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163416643 - 2¹⁷ = 163285571 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163416599 and 163416608.

It is not an unprimeable number, because it can be changed into a prime (163416683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20905 + ... + 27637.

It is an arithmetic number, because the mean of its divisors is an integer number (22013446).

Almost surely, 2^163416643 is an apocalyptic number.

163416643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

163416643 is a deficient number, since it is larger than the sum of its proper divisors (12690925).

163416643 is a wasteful number, since it uses less digits than its factorization.

163416643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8613.

The product of its digits is 31104, while the sum is 34.

The square root of 163416643 is about 12783.4519203539. The cubic root of 163416643 is about 546.7205876236.

The spelling of 163416643 in words is "one hundred sixty-three million, four hundred sixteen thousand, six hundred forty-three".