91066884480 has 1728 divisors, whose sum is σ = 409609090800. Its totient is φ = 18466652160.

The previous prime is 91066884479. The next prime is 91066884527. The reversal of 91066884480 is 8448866019.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 3959429749 + ... + 3959429771.

Almost surely, 2^91066884480 is an apocalyptic number.

91066884480 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91066884480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204804545400).

91066884480 is an abundant number, since it is smaller than the sum of its proper divisors (318542206320).

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

91066884480 is a wasteful number, since it uses less digits than its factorization.

91066884480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The spelling of 91066884480 in words is "ninety-one billion, sixty-six million, eight hundred eighty-four thousand, four hundred eighty".