91666850935 has 16 divisors (see below), whose sum is σ = 120056706432. Its totient is φ = 66635431200.

The previous prime is 91666850927. The next prime is 91666850939. The reversal of 91666850935 is 53905866619.

It is not a de Polignac number, because 91666850935 - 2³ = 91666850927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91666850935.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91666850939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273849 + ... + 508258.

It is an arithmetic number, because the mean of its divisors is an integer number (7503544152).

Almost surely, 2^91666850935 is an apocalyptic number.

91666850935 is a deficient number, since it is larger than the sum of its proper divisors (28389855497).

91666850935 is a wasteful number, since it uses less digits than its factorization.

91666850935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784254.

The product of its (nonzero) digits is 10497600, while the sum is 58.

The spelling of 91666850935 in words is "ninety-one billion, six hundred sixty-six million, eight hundred fifty thousand, nine hundred thirty-five".