91552689996 has 12 divisors (see below), whose sum is σ = 213622943352. Its totient is φ = 30517563328.

The previous prime is 91552689971. The next prime is 91552690049. The reversal of 91552689996 is 69998625519.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 91552689996.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3814695405 + ... + 3814695428.

It is an arithmetic number, because the mean of its divisors is an integer number (17801911946).

Almost surely, 2^91552689996 is an apocalyptic number.

It is an amenable number.

91552689996 is an abundant number, since it is smaller than the sum of its proper divisors (122070253356).

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

91552689996 is a wasteful number, since it uses less digits than its factorization.

91552689996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7629390840 (or 7629390838 counting only the distinct ones).

The product of its digits is 94478400, while the sum is 69.

The spelling of 91552689996 in words is "ninety-one billion, five hundred fifty-two million, six hundred eighty-nine thousand, nine hundred ninety-six".