163641252111016 has 32 divisors (see below), whose sum is σ = 307515134700000. Its totient is φ = 81637293957696.

The previous prime is 163641252111011. The next prime is 163641252111047. The reversal of 163641252111016 is 610111252146361.

It is a super-2 number, since 2×163641252111016² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 163641252111016.

It is not an unprimeable number, because it can be changed into a prime (163641252111011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11984190 + ... + 21700306.

It is an arithmetic number, because the mean of its divisors is an integer number (9609847959375).

Almost surely, 2^{163641252111016} is an apocalyptic number.

It is an amenable number.

163641252111016 is a deficient number, since it is larger than the sum of its proper divisors (143873882588984).

163641252111016 is a wasteful number, since it uses less digits than its factorization.

163641252111016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9720841 (or 9720837 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 163641252111016 in words is "one hundred sixty-three trillion, six hundred forty-one billion, two hundred fifty-two million, one hundred eleven thousand, sixteen".