16779118538 has 32 divisors (see below), whose sum is σ = 32607200640. Its totient is φ = 6288528960.

The previous prime is 16779118427. The next prime is 16779118571. The reversal of 16779118538 is 83581197761.

16779118538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 2422673 + ... + 2429588.

It is an arithmetic number, because the mean of its divisors is an integer number (1018975020).

Almost surely, 2^16779118538 is an apocalyptic number.

16779118538 is a deficient number, since it is larger than the sum of its proper divisors (15828082102).

16779118538 is a wasteful number, since it uses less digits than its factorization.

16779118538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4852302.

The product of its digits is 2540160, while the sum is 56.

The spelling of 16779118538 in words is "sixteen billion, seven hundred seventy-nine million, one hundred eighteen thousand, five hundred thirty-eight".