163681512916 has 12 divisors (see below), whose sum is σ = 293104104832. Its totient is φ = 79937482968.

The previous prime is 163681512887. The next prime is 163681513007. The reversal of 163681512916 is 619215186361.

163681512916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 163681512916.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475818180 + ... + 475818523.

Almost surely, 2^163681512916 is an apocalyptic number.

It is an amenable number.

163681512916 is a deficient number, since it is larger than the sum of its proper divisors (129422591916).

163681512916 is a wasteful number, since it uses less digits than its factorization.

163681512916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951636750 (or 951636748 counting only the distinct ones).

The product of its digits is 466560, while the sum is 49.

The spelling of 163681512916 in words is "one hundred sixty-three billion, six hundred eighty-one million, five hundred twelve thousand, nine hundred sixteen".