11165143470 has 128 divisors (see below), whose sum is σ = 30762547200. Its totient is φ = 2570600448.

The previous prime is 11165143469. The next prime is 11165143477. The reversal of 11165143470 is 7434156111.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11165143477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 575854 + ... + 594926.

It is an arithmetic number, because the mean of its divisors is an integer number (240332400).

Almost surely, 2^11165143470 is an apocalyptic number.

11165143470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11165143470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15381273600).

11165143470 is an abundant number, since it is smaller than the sum of its proper divisors (19597403730).

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

11165143470 is a wasteful number, since it uses less digits than its factorization.

11165143470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19194.

The product of its (nonzero) digits is 10080, while the sum is 33.

Adding to 11165143470 its reverse (7434156111), we get a palindrome (18599299581).

The spelling of 11165143470 in words is "eleven billion, one hundred sixty-five million, one hundred forty-three thousand, four hundred seventy".