90168160012 has 24 divisors (see below), whose sum is σ = 181251743904. Its totient is φ = 38447334912.

The previous prime is 90168159973. The next prime is 90168160037. The reversal of 90168160012 is 21006186109.

It is a self number, because there is not a number n which added to its sum of digits gives 90168160012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8167813 + ... + 8178844.

It is an arithmetic number, because the mean of its divisors is an integer number (7552155996).

Almost surely, 2^90168160012 is an apocalyptic number.

It is an amenable number.

90168160012 is an abundant number, since it is smaller than the sum of its proper divisors (91083583892).

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

90168160012 is a wasteful number, since it uses less digits than its factorization.

90168160012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16346865 (or 16346863 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 90168160012 in words is "ninety billion, one hundred sixty-eight million, one hundred sixty thousand, twelve".