11153261165 has 16 divisors (see below), whose sum is σ = 13477121280. Its totient is φ = 8860575360.

The previous prime is 11153261137. The next prime is 11153261227. The reversal of 11153261165 is 56116235111.

It is not a de Polignac number, because 11153261165 - 2¹² = 11153257069 is a prime.

It is a super-2 number, since 2×11153261165² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 936800 + ... + 948630.

It is an arithmetic number, because the mean of its divisors is an integer number (842320080).

Almost surely, 2^11153261165 is an apocalyptic number.

It is an amenable number.

11153261165 is a deficient number, since it is larger than the sum of its proper divisors (2323860115).

11153261165 is a wasteful number, since it uses less digits than its factorization.

11153261165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13132.

The product of its digits is 5400, while the sum is 32.

Adding to 11153261165 its reverse (56116235111), we get a palindrome (67269496276).

The spelling of 11153261165 in words is "eleven billion, one hundred fifty-three million, two hundred sixty-one thousand, one hundred sixty-five".