91665283384 has 8 divisors (see below), whose sum is σ = 171872406360. Its totient is φ = 45832641688.

The previous prime is 91665283361. The next prime is 91665283387. The reversal of 91665283384 is 48338256619.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91665283387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5729080204 + ... + 5729080219.

It is an arithmetic number, because the mean of its divisors is an integer number (21484050795).

Almost surely, 2^91665283384 is an apocalyptic number.

It is an amenable number.

91665283384 is a deficient number, since it is larger than the sum of its proper divisors (80207122976).

91665283384 is a wasteful number, since it uses less digits than its factorization.

91665283384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11458160429 (or 11458160425 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 55.

The spelling of 91665283384 in words is "ninety-one billion, six hundred sixty-five million, two hundred eighty-three thousand, three hundred eighty-four".