1165061203240 has 96 divisors (see below), whose sum is σ = 2863622069280. Its totient is φ = 423077616000.

The previous prime is 1165061203231. The next prime is 1165061203249. The reversal of 1165061203240 is 423021605611.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1165061203231) and next prime (1165061203249).

It is not an unprimeable number, because it can be changed into a prime (1165061203249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 603345075 + ... + 603347005.

It is an arithmetic number, because the mean of its divisors is an integer number (29829396555).

Almost surely, 2^{1165061203240} is an apocalyptic number.

1165061203240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1165061203240 is an abundant number, since it is smaller than the sum of its proper divisors (1698560866040).

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

1165061203240 is a wasteful number, since it uses less digits than its factorization.

1165061203240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4295 (or 3120 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 1165061203240 its reverse (423021605611), we get a palindrome (1588082808851).

The spelling of 1165061203240 in words is "one trillion, one hundred sixty-five billion, sixty-one million, two hundred three thousand, two hundred forty".