91466565 has 16 divisors (see below), whose sum is σ = 146893056. Its totient is φ = 48600000.

The previous prime is 91466563. The next prime is 91466593. The reversal of 91466565 is 56566419.

It is not a de Polignac number, because 91466565 - 2¹ = 91466563 is a prime.

It is a super-2 number, since 2×91466565² = 16732265025798450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91466563) 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, 7186 + ... + 15315.

It is an arithmetic number, because the mean of its divisors is an integer number (9180816).

Almost surely, 2^91466565 is an apocalyptic number.

It is an amenable number.

91466565 is a deficient number, since it is larger than the sum of its proper divisors (55426491).

91466565 is a wasteful number, since it uses less digits than its factorization.

91466565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22780.

The product of its digits is 194400, while the sum is 42.

The square root of 91466565 is about 9563.8153997241. The cubic root of 91466565 is about 450.5615458804.

The spelling of 91466565 in words is "ninety-one million, four hundred sixty-six thousand, five hundred sixty-five".