1165113566132 has 24 divisors (see below), whose sum is σ = 2088961486920. Its totient is φ = 568271267840.

The previous prime is 1165113566129. The next prime is 1165113566137. The reversal of 1165113566132 is 2316653115611.

It can be written as a sum of positive squares in 4 ways, for example, as 1140142756 + 1163973423376 = 33766^2 + 1078876^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 1165113566132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165113566137) 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 7 ways as a sum of consecutive naturals, for example, 746594 + ... + 1699302.

It is an arithmetic number, because the mean of its divisors is an integer number (87040061955).

Almost surely, 2^{1165113566132} is an apocalyptic number.

It is an amenable number.

1165113566132 is a deficient number, since it is larger than the sum of its proper divisors (923847920788).

1165113566132 is a wasteful number, since it uses less digits than its factorization.

1165113566132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960211 (or 960209 counting only the distinct ones).

The product of its digits is 97200, while the sum is 41.

The spelling of 1165113566132 in words is "one trillion, one hundred sixty-five billion, one hundred thirteen million, five hundred sixty-six thousand, one hundred thirty-two".