96566661569 has 32 divisors (see below), whose sum is σ = 125867851776. Its totient is φ = 72111663360.

The previous prime is 96566661559. The next prime is 96566661571. The reversal of 96566661569 is 96516666569.

It is a cyclic number.

It is not a de Polignac number, because 96566661569 - 2⁸ = 96566661313 is a prime.

It is a super-2 number, since 2×96566661569² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (96566661559) 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 31 ways as a sum of consecutive naturals, for example, 484217 + ... + 653910.

It is an arithmetic number, because the mean of its divisors is an integer number (3933370368).

Almost surely, 2^96566661569 is an apocalyptic number.

It is an amenable number.

96566661569 is a deficient number, since it is larger than the sum of its proper divisors (29301190207).

96566661569 is a wasteful number, since it uses less digits than its factorization.

96566661569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138205.

The product of its digits is 94478400, while the sum is 65.

Subtracting from 96566661569 its reverse (96516666569), we obtain a triangular number (49995000 = T₉₉₉₉).

The spelling of 96566661569 in words is "ninety-six billion, five hundred sixty-six million, six hundred sixty-one thousand, five hundred sixty-nine".