16549979332 has 12 divisors (see below), whose sum is σ = 30666138300. Its totient is φ = 7788225536.

The previous prime is 16549979297. The next prime is 16549979351. The reversal of 16549979332 is 23397994561.

It is a happy number.

16549979332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4942933636 + 11607045696 = 70306^2 + 107736^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121690957 + ... + 121691092.

It is an arithmetic number, because the mean of its divisors is an integer number (2555511525).

Almost surely, 2^16549979332 is an apocalyptic number.

It is an amenable number.

16549979332 is a deficient number, since it is larger than the sum of its proper divisors (14116158968).

16549979332 is a wasteful number, since it uses less digits than its factorization.

16549979332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243382070 (or 243382068 counting only the distinct ones).

The product of its digits is 11022480, while the sum is 58.

The spelling of 16549979332 in words is "sixteen billion, five hundred forty-nine million, nine hundred seventy-nine thousand, three hundred thirty-two".