99161893866 has 16 divisors (see below), whose sum is σ = 226655757504. Its totient is φ = 28331969664.

The previous prime is 99161893823. The next prime is 99161893949. The reversal of 99161893866 is 66839816199.

It is a happy number.

99161893866 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 99161893797 and 99161893806.

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 7 ways as a sum of consecutive naturals, for example, 1180498695 + ... + 1180498778.

It is an arithmetic number, because the mean of its divisors is an integer number (14165984844).

Almost surely, 2^99161893866 is an apocalyptic number.

99161893866 is an abundant number, since it is smaller than the sum of its proper divisors (127493863638).

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

99161893866 is a wasteful number, since it uses less digits than its factorization.

99161893866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360997485.

The product of its digits is 30233088, while the sum is 66.

The spelling of 99161893866 in words is "ninety-nine billion, one hundred sixty-one million, eight hundred ninety-three thousand, eight hundred sixty-six".