1121152263165 has 80 divisors (see below), whose sum is σ = 2196374723136. Its totient is φ = 542622240000.

The previous prime is 1121152263149. The next prime is 1121152263197. The reversal of 1121152263165 is 5613622511211.

1121152263165 is a `hidden beast` number, since 1 + 1 + 2 + 1 + 15 + 2 + 2 + 631 + 6 + 5 = 666.

It is not a de Polignac number, because 1121152263165 - 2⁴ = 1121152263149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2284665 + ... + 2731665.

Almost surely, 2^{1121152263165} is an apocalyptic number.

1121152263165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1121152263165 is a deficient number, since it is larger than the sum of its proper divisors (1075222459971).

1121152263165 is a wasteful number, since it uses less digits than its factorization.

1121152263165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447592 (or 447583 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

Adding to 1121152263165 its reverse (5613622511211), we get a palindrome (6734774774376).

The spelling of 1121152263165 in words is "one trillion, one hundred twenty-one billion, one hundred fifty-two million, two hundred sixty-three thousand, one hundred sixty-five".