1166095511997 has 32 divisors (see below), whose sum is σ = 1713580176000. Its totient is φ = 700807790592.

The previous prime is 1166095511969. The next prime is 1166095512007. The reversal of 1166095511997 is 7991155906611.

It is not a de Polignac number, because 1166095511997 - 2¹⁰ = 1166095510973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1166095511997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166095511947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12512629 + ... + 12605477.

It is an arithmetic number, because the mean of its divisors is an integer number (53549380500).

Almost surely, 2^{1166095511997} is an apocalyptic number.

It is an amenable number.

1166095511997 is a deficient number, since it is larger than the sum of its proper divisors (547484664003).

1166095511997 is a wasteful number, since it uses less digits than its factorization.

1166095511997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100397.

The product of its (nonzero) digits is 4592700, while the sum is 60.

The spelling of 1166095511997 in words is "one trillion, one hundred sixty-six billion, ninety-five million, five hundred eleven thousand, nine hundred ninety-seven".