91666675925 has 12 divisors (see below), whose sum is σ = 124000012896. Its totient is φ = 66666673200.

The previous prime is 91666675909. The next prime is 91666675943. The reversal of 91666675925 is 52957666619.

It is not a de Polignac number, because 91666675925 - 2⁴ = 91666675909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166666409 + ... + 166666958.

It is an arithmetic number, because the mean of its divisors is an integer number (10333334408).

Almost surely, 2^91666675925 is an apocalyptic number.

It is an amenable number.

91666675925 is a deficient number, since it is larger than the sum of its proper divisors (32333336971).

91666675925 is a wasteful number, since it uses less digits than its factorization.

91666675925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333333388 (or 333333383 counting only the distinct ones).

The product of its digits is 36741600, while the sum is 62.

The spelling of 91666675925 in words is "ninety-one billion, six hundred sixty-six million, six hundred seventy-five thousand, nine hundred twenty-five".