16709554138 has 16 divisors (see below), whose sum is σ = 26368092000. Its totient is φ = 7929956272.

The previous prime is 16709554087. The next prime is 16709554139. The reversal of 16709554138 is 83145590761.

It is a junction number, because it is equal to n+sod(n) for n = 16709554091 and 16709554100.

It is not an unprimeable number, because it can be changed into a prime (16709554139) 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, 2438068 + ... + 2444911.

It is an arithmetic number, because the mean of its divisors is an integer number (1648005750).

Almost surely, 2^16709554138 is an apocalyptic number.

16709554138 is a deficient number, since it is larger than the sum of its proper divisors (9658537862).

16709554138 is a wasteful number, since it uses less digits than its factorization.

16709554138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4883069.

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 16709554138 in words is "sixteen billion, seven hundred nine million, five hundred fifty-four thousand, one hundred thirty-eight".