91305566882 has 4 divisors (see below), whose sum is σ = 136958350326. Its totient is φ = 45652783440.

The previous prime is 91305566873. The next prime is 91305566899. The reversal of 91305566882 is 28866550319.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 73467560401 + 17838006481 = 271049^2 + 133559^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22826391719 + ... + 22826391722.

Almost surely, 2^91305566882 is an apocalyptic number.

91305566882 is a deficient number, since it is larger than the sum of its proper divisors (45652783444).

91305566882 is a wasteful number, since it uses less digits than its factorization.

91305566882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45652783443.

The product of its (nonzero) digits is 3110400, while the sum is 53.

The spelling of 91305566882 in words is "ninety-one billion, three hundred five million, five hundred sixty-six thousand, eight hundred eighty-two".