11321644450 has 24 divisors (see below), whose sum is σ = 21103394832. Its totient is φ = 4518951120.

The previous prime is 11321644417. The next prime is 11321644463. The reversal of 11321644450 is 5444612311.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219084 + ... + 265783.

It is an arithmetic number, because the mean of its divisors is an integer number (879308118).

Almost surely, 2^11321644450 is an apocalyptic number.

11321644450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11321644450 is a deficient number, since it is larger than the sum of its proper divisors (9781750382).

11321644450 is a wasteful number, since it uses less digits than its factorization.

11321644450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485346 (or 485341 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 11321644450 in words is "eleven billion, three hundred twenty-one million, six hundred forty-four thousand, four hundred fifty".