16554459579 has 16 divisors (see below), whose sum is σ = 25246080000. Its totient is φ = 9452102400.

The previous prime is 16554459539. The next prime is 16554459583. The reversal of 16554459579 is 97595445561.

It is not a de Polignac number, because 16554459579 - 2⁹ = 16554459067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16554459539) 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 15 ways as a sum of consecutive naturals, for example, 289347 + ... + 341804.

It is an arithmetic number, because the mean of its divisors is an integer number (1577880000).

Almost surely, 2^16554459579 is an apocalyptic number.

16554459579 is a deficient number, since it is larger than the sum of its proper divisors (8691620421).

16554459579 is a wasteful number, since it uses less digits than its factorization.

16554459579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632410.

The product of its digits is 34020000, while the sum is 60.

The spelling of 16554459579 in words is "sixteen billion, five hundred fifty-four million, four hundred fifty-nine thousand, five hundred seventy-nine".