91066493541 has 8 divisors (see below), whose sum is σ = 121431878080. Its totient is φ = 60706052352.

The previous prime is 91066493501. The next prime is 91066493591. The reversal of 91066493541 is 14539466019.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91066493541 - 2¹⁵ = 91066460773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91066493501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1192636 + ... + 1266693.

It is an arithmetic number, because the mean of its divisors is an integer number (15178984760).

Almost surely, 2^91066493541 is an apocalyptic number.

It is an amenable number.

91066493541 is a deficient number, since it is larger than the sum of its proper divisors (30365384539).

91066493541 is a wasteful number, since it uses less digits than its factorization.

91066493541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471675.

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 91066493541 in words is "ninety-one billion, sixty-six million, four hundred ninety-three thousand, five hundred forty-one".