16549626338 has 8 divisors (see below), whose sum is σ = 28370788032. Its totient is φ = 7092696996.

The previous prime is 16549626329. The next prime is 16549626439. The reversal of 16549626338 is 83362694561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 16549626338.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 591058070 + ... + 591058097.

It is an arithmetic number, because the mean of its divisors is an integer number (3546348504).

Almost surely, 2^16549626338 is an apocalyptic number.

16549626338 is a deficient number, since it is larger than the sum of its proper divisors (11821161694).

16549626338 is a wasteful number, since it uses less digits than its factorization.

16549626338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182116176.

The product of its digits is 5598720, while the sum is 53.

The spelling of 16549626338 in words is "sixteen billion, five hundred forty-nine million, six hundred twenty-six thousand, three hundred thirty-eight".