91066497036 has 24 divisors (see below), whose sum is σ = 212542989120. Its totient is φ = 30347713872.

The previous prime is 91066497031. The next prime is 91066497043. The reversal of 91066497036 is 63079466019.

It is a self number, because there is not a number n which added to its sum of digits gives 91066497036.

It is not an unprimeable number, because it can be changed into a prime (91066497031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 924306 + ... + 1018073.

It is an arithmetic number, because the mean of its divisors is an integer number (8855957880).

Almost surely, 2^91066497036 is an apocalyptic number.

It is an amenable number.

91066497036 is an abundant number, since it is smaller than the sum of its proper divisors (121476492084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91066497036 is a wasteful number, since it uses less digits than its factorization.

91066497036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946293 (or 1946291 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 51.

The spelling of 91066497036 in words is "ninety-one billion, sixty-six million, four hundred ninety-seven thousand, thirty-six".