91000088000016 has 80 divisors (see below), whose sum is σ = 253217442421440. Its totient is φ = 27994438402560.

The previous prime is 91000087999871. The next prime is 91000088000023. The reversal of 91000088000016 is 61000088000019.

91000088000016 is digitally balanced in base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

91000088000016 is a strobogrammatic number because it is the same when read upside-down.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11424471 + ... + 17678198.

It is an arithmetic number, because the mean of its divisors is an integer number (3165218030268).

Almost surely, 2^{91000088000016} is an apocalyptic number.

It is an amenable number.

91000088000016 is an abundant number, since it is smaller than the sum of its proper divisors (162217354421424).

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

91000088000016 is a wasteful number, since it uses less digits than its factorization.

91000088000016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29107704 (or 29107698 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 33.

The spelling of 91000088000016 in words is "ninety-one trillion, eighty-eight million, sixteen", and thus it is an aban number and an uban number.