1165488376565 has 16 divisors (see below), whose sum is σ = 1399576043520. Its totient is φ = 931730963520.

The previous prime is 1165488376553. The next prime is 1165488376597. The reversal of 1165488376565 is 5656738845611.

It is not a de Polignac number, because 1165488376565 - 2⁸ = 1165488376309 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44622860 + ... + 44648970.

It is an arithmetic number, because the mean of its divisors is an integer number (87473502720).

Almost surely, 2^{1165488376565} is an apocalyptic number.

It is an amenable number.

1165488376565 is a deficient number, since it is larger than the sum of its proper divisors (234087666955).

1165488376565 is a wasteful number, since it uses less digits than its factorization.

1165488376565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32092.

The product of its digits is 145152000, while the sum is 65.

The spelling of 1165488376565 in words is "one trillion, one hundred sixty-five billion, four hundred eighty-eight million, three hundred seventy-six thousand, five hundred sixty-five".