1165488376566 has 16 divisors (see below), whose sum is σ = 2468093032944. Its totient is φ = 365643412224.

The previous prime is 1165488376553. The next prime is 1165488376597. The reversal of 1165488376566 is 6656738845611.

It is a junction number, because it is equal to n+sod(n) for n = 1165488376497 and 1165488376506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5713178215 + ... + 5713178418.

It is an arithmetic number, because the mean of its divisors is an integer number (154255814559).

Almost surely, 2^{1165488376566} is an apocalyptic number.

1165488376566 is an abundant number, since it is smaller than the sum of its proper divisors (1302604656378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1165488376566 is a wasteful number, since it uses less digits than its factorization.

1165488376566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11426356655.

The product of its digits is 174182400, while the sum is 66.

The spelling of 1165488376566 in words is "one trillion, one hundred sixty-five billion, four hundred eighty-eight million, three hundred seventy-six thousand, five hundred sixty-six".