163635320120416 has 12 divisors (see below), whose sum is σ = 322157036487132. Its totient is φ = 81817660060192.

The previous prime is 163635320120413. The next prime is 163635320120423. The reversal of 163635320120416 is 614021023536361.

It is a super-2 number, since 2×163635320120416² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163635320120413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2556801876850 + ... + 2556801876913.

It is an arithmetic number, because the mean of its divisors is an integer number (26846419707261).

Almost surely, 2^{163635320120416} is an apocalyptic number.

163635320120416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

163635320120416 is a deficient number, since it is larger than the sum of its proper divisors (158521716366716).

163635320120416 is an equidigital number, since it uses as much as digits as its factorization.

163635320120416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5113603753773 (or 5113603753765 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 43.

Adding to 163635320120416 its reverse (614021023536361), we get a palindrome (777656343656777).

The spelling of 163635320120416 in words is "one hundred sixty-three trillion, six hundred thirty-five billion, three hundred twenty million, one hundred twenty thousand, four hundred sixteen".