168219963 has 8 divisors (see below), whose sum is σ = 249214800. Its totient is φ = 112146624.

The previous prime is 168219941. The next prime is 168219973. The reversal of 168219963 is 369912861.

It is a happy number.

168219963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 168219963 - 2⁸ = 168219707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (168219973) 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, 3115158 + ... + 3115211.

It is an arithmetic number, because the mean of its divisors is an integer number (31151850).

Almost surely, 2^168219963 is an apocalyptic number.

168219963 is a deficient number, since it is larger than the sum of its proper divisors (80994837).

168219963 is an equidigital number, since it uses as much as digits as its factorization.

168219963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6230378 (or 6230372 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 168219963 is about 12969.9638781301. The cubic root of 168219963 is about 552.0255482032.

The spelling of 168219963 in words is "one hundred sixty-eight million, two hundred nineteen thousand, nine hundred sixty-three".