1165541302212 has 72 divisors (see below), whose sum is σ = 3249115196544. Its totient is φ = 324011475648.

The previous prime is 1165541302181. The next prime is 1165541302229. The reversal of 1165541302212 is 2122031455611.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26764908 + ... + 26808419.

It is an arithmetic number, because the mean of its divisors is an integer number (45126599952).

Almost surely, 2^{1165541302212} is an apocalyptic number.

1165541302212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1165541302212 is an abundant number, since it is smaller than the sum of its proper divisors (2083573894332).

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

1165541302212 is a wasteful number, since it uses less digits than its factorization.

1165541302212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53573385 (or 53573376 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 1165541302212 its reverse (2122031455611), we get a palindrome (3287572757823).

The spelling of 1165541302212 in words is "one trillion, one hundred sixty-five billion, five hundred forty-one million, three hundred two thousand, two hundred twelve".