91000069000016 has 40 divisors (see below), whose sum is σ = 192361066940064. Its totient is φ = 41359364069760.

The previous prime is 91000069000007. The next prime is 91000069000021. The reversal of 91000069000016 is 61000096000019.

It is a happy number.

91000069000016 is a strobogrammatic number because it is the same when read upside-down.

It is a congruent number.

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, 25201166 + ... + 28584941.

Almost surely, 2^{91000069000016} is an apocalyptic number.

It is an amenable number.

91000069000016 is an abundant number, since it is smaller than the sum of its proper divisors (101360997940048).

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

91000069000016 is a wasteful number, since it uses less digits than its factorization.

91000069000016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53795739 (or 53795733 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 32.

The spelling of 91000069000016 in words is "ninety-one trillion, sixty-nine million, sixteen", and thus it is an aban number and an uban number.