91469559556 has 48 divisors (see below), whose sum is σ = 167872739328. Its totient is φ = 43526340000.

The previous prime is 91469559553. The next prime is 91469559589. The reversal of 91469559556 is 65595596419.

It is not an unprimeable number, because it can be changed into a prime (91469559553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34244101 + ... + 34246771.

It is an arithmetic number, because the mean of its divisors is an integer number (3497348736).

Almost surely, 2^91469559556 is an apocalyptic number.

It is an amenable number.

91469559556 is a deficient number, since it is larger than the sum of its proper divisors (76403179772).

91469559556 is a wasteful number, since it uses less digits than its factorization.

91469559556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4432 (or 4430 counting only the distinct ones).

The product of its digits is 65610000, while the sum is 64.

The spelling of 91469559556 in words is "ninety-one billion, four hundred sixty-nine million, five hundred fifty-nine thousand, five hundred fifty-six".