91132260585 has 64 divisors (see below), whose sum is σ = 149707751424. Its totient is φ = 47323180800.

The previous prime is 91132260559. The next prime is 91132260607. The reversal of 91132260585 is 58506223119.

It is not a de Polignac number, because 91132260585 - 2⁹ = 91132260073 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 94241772 + ... + 94242738.

It is an arithmetic number, because the mean of its divisors is an integer number (2339183616).

Almost surely, 2^91132260585 is an apocalyptic number.

It is an amenable number.

91132260585 is a deficient number, since it is larger than the sum of its proper divisors (58575490839).

91132260585 is a wasteful number, since it uses less digits than its factorization.

91132260585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974.

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 91132260585 in words is "ninety-one billion, one hundred thirty-two million, two hundred sixty thousand, five hundred eighty-five".