1165461888255 has 96 divisors (see below), whose sum is σ = 2177912033280. Its totient is φ = 530643294720.

The previous prime is 1165461888247. The next prime is 1165461888259. The reversal of 1165461888255 is 5528881645611.

It is a happy number.

It is not a de Polignac number, because 1165461888255 - 2³ = 1165461888247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165461888259) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 261487987 + ... + 261492443.

It is an arithmetic number, because the mean of its divisors is an integer number (22686583680).

Almost surely, 2^{1165461888255} is an apocalyptic number.

1165461888255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1165461888255 is a deficient number, since it is larger than the sum of its proper divisors (1012450145025).

1165461888255 is a wasteful number, since it uses less digits than its factorization.

1165461888255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5829 (or 5822 counting only the distinct ones).

The product of its digits is 18432000, while the sum is 60.

The spelling of 1165461888255 in words is "one trillion, one hundred sixty-five billion, four hundred sixty-one million, eight hundred eighty-eight thousand, two hundred fifty-five".