163621220062416 has 80 divisors (see below), whose sum is σ = 427815382854720. Its totient is φ = 53878934799360.

The previous prime is 163621220062367. The next prime is 163621220062523. The reversal of 163621220062416 is 614260022126361.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47782626 + ... + 51092286.

It is an arithmetic number, because the mean of its divisors is an integer number (5347692285684).

Almost surely, 2^{163621220062416} is an apocalyptic number.

163621220062416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

163621220062416 is an abundant number, since it is smaller than the sum of its proper divisors (264194162792304).

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

163621220062416 is a wasteful number, since it uses less digits than its factorization.

163621220062416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322164 (or 3322158 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

Adding to 163621220062416 its reverse (614260022126361), we get a palindrome (777881242188777).

The spelling of 163621220062416 in words is "one hundred sixty-three trillion, six hundred twenty-one billion, two hundred twenty million, sixty-two thousand, four hundred sixteen".