91668350175 has 24 divisors (see below), whose sum is σ = 151624719504. Its totient is φ = 48868373760.

The previous prime is 91668350161. The next prime is 91668350183. The reversal of 91668350175 is 57105386619.

It is not a de Polignac number, because 91668350175 - 2⁷ = 91668350047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94542 + ... + 438491.

It is an arithmetic number, because the mean of its divisors is an integer number (6317696646).

Almost surely, 2^91668350175 is an apocalyptic number.

91668350175 is a deficient number, since it is larger than the sum of its proper divisors (59956369329).

91668350175 is a wasteful number, since it uses less digits than its factorization.

91668350175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535339 (or 535334 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 51.

The spelling of 91668350175 in words is "ninety-one billion, six hundred sixty-eight million, three hundred fifty thousand, one hundred seventy-five".