99789601156 has 12 divisors (see below), whose sum is σ = 199579202368. Its totient is φ = 42766971912.

The previous prime is 99789601117. The next prime is 99789601159. The reversal of 99789601156 is 65110698799.

99789601156 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 99789601094 and 99789601103.

It is not an unprimeable number, because it can be changed into a prime (99789601159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1781957136 + ... + 1781957191.

Almost surely, 2^99789601156 is an apocalyptic number.

It is an amenable number.

99789601156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

99789601156 is a wasteful number, since it uses less digits than its factorization.

99789601156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3563914338 (or 3563914336 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 61.

The spelling of 99789601156 in words is "ninety-nine billion, seven hundred eighty-nine million, six hundred one thousand, one hundred fifty-six".