16583221484 has 24 divisors (see below), whose sum is σ = 29411612160. Its totient is φ = 8180072784.

The previous prime is 16583221483. The next prime is 16583221507. The reversal of 16583221484 is 48412238561.

It is not an unprimeable number, because it can be changed into a prime (16583221483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384977 + ... + 425879.

It is an arithmetic number, because the mean of its divisors is an integer number (1225483840).

Almost surely, 2^16583221484 is an apocalyptic number.

It is an amenable number.

16583221484 is a deficient number, since it is larger than the sum of its proper divisors (12828390676).

16583221484 is a wasteful number, since it uses less digits than its factorization.

16583221484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42269 (or 42267 counting only the distinct ones).

The product of its digits is 368640, while the sum is 44.

The spelling of 16583221484 in words is "sixteen billion, five hundred eighty-three million, two hundred twenty-one thousand, four hundred eighty-four".