91558671088 has 20 divisors (see below), whose sum is σ = 180742000968. Its totient is φ = 44915574080.

The previous prime is 91558671047. The next prime is 91558671107. The reversal of 91558671088 is 88017685519.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53984218 + ... + 53985913.

Almost surely, 2^91558671088 is an apocalyptic number.

It is an amenable number.

91558671088 is a deficient number, since it is larger than the sum of its proper divisors (89183329880).

91558671088 is a wasteful number, since it uses less digits than its factorization.

91558671088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107970192 (or 107970186 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 58.

The spelling of 91558671088 in words is "ninety-one billion, five hundred fifty-eight million, six hundred seventy-one thousand, eighty-eight".