11433165408 has 72 divisors (see below), whose sum is σ = 37157794128. Its totient is φ = 3266618112.

The previous prime is 11433165389. The next prime is 11433165439. The reversal of 11433165408 is 80456133411.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2833591 + ... + 2837622.

It is an arithmetic number, because the mean of its divisors is an integer number (516080474).

Almost surely, 2^11433165408 is an apocalyptic number.

11433165408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11433165408 is an abundant number, since it is smaller than the sum of its proper divisors (25724628720).

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

11433165408 is a wasteful number, since it uses less digits than its factorization.

11433165408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5671236 (or 5671225 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

Adding to 11433165408 its reverse (80456133411), we get a palindrome (91889298819).

The spelling of 11433165408 in words is "eleven billion, four hundred thirty-three million, one hundred sixty-five thousand, four hundred eight".