91163268116 has 12 divisors (see below), whose sum is σ = 161721140532. Its totient is φ = 44957227968.

The previous prime is 91163268113. The next prime is 91163268167. The reversal of 91163268116 is 61186236119.

It can be written as a sum of positive squares in 2 ways, for example, as 77228410000 + 13934858116 = 277900^2 + 118046^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91163268113) 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, 156101195 + ... + 156101778.

It is an arithmetic number, because the mean of its divisors is an integer number (13476761711).

Almost surely, 2^91163268116 is an apocalyptic number.

It is an amenable number.

91163268116 is a deficient number, since it is larger than the sum of its proper divisors (70557872416).

91163268116 is a wasteful number, since it uses less digits than its factorization.

91163268116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312203050 (or 312203048 counting only the distinct ones).

The product of its digits is 93312, while the sum is 44.

The spelling of 91163268116 in words is "ninety-one billion, one hundred sixty-three million, two hundred sixty-eight thousand, one hundred sixteen".