16518034686 has 16 divisors (see below), whose sum is σ = 33081519744. Its totient is φ = 5498436504.

The previous prime is 16518034639. The next prime is 16518034691. The reversal of 16518034686 is 68643081561.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1889040 + ... + 1897763.

It is an arithmetic number, because the mean of its divisors is an integer number (2067594984).

Almost surely, 2^16518034686 is an apocalyptic number.

16518034686 is an abundant number, since it is smaller than the sum of its proper divisors (16563485058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16518034686 is a wasteful number, since it uses less digits than its factorization.

16518034686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787535.

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 16518034686 in words is "sixteen billion, five hundred eighteen million, thirty-four thousand, six hundred eighty-six".