97566411065 has 4 divisors (see below), whose sum is σ = 117079693284. Its totient is φ = 78053128848.

The previous prime is 97566411053. The next prime is 97566411077. The reversal of 97566411065 is 56011466579.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56011466579 = 38933 ⋅1438663.

It is an interprime number because it is at equal distance from previous prime (97566411053) and next prime (97566411077).

It can be written as a sum of positive squares in 2 ways, for example, as 64258701049 + 33307710016 = 253493^2 + 182504^2 .

It is a cyclic number.

It is not a de Polignac number, because 97566411065 - 2¹⁸ = 97566148921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9756641102 + ... + 9756641111.

It is an arithmetic number, because the mean of its divisors is an integer number (29269923321).

Almost surely, 2^97566411065 is an apocalyptic number.

It is an amenable number.

97566411065 is a deficient number, since it is larger than the sum of its proper divisors (19513282219).

97566411065 is a wasteful number, since it uses less digits than its factorization.

97566411065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19513282218.

The product of its (nonzero) digits is 1360800, while the sum is 50.

The spelling of 97566411065 in words is "ninety-seven billion, five hundred sixty-six million, four hundred eleven thousand, sixty-five".