16518493358 has 8 divisors (see below), whose sum is σ = 25245244728. Its totient is φ = 8103411784.

The previous prime is 16518493357. The next prime is 16518493367. The reversal of 16518493358 is 85339481561.

It is a happy number.

16518493358 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16518493357) by changing a digit.

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, 77917316 + ... + 77917527.

It is an arithmetic number, because the mean of its divisors is an integer number (3155655591).

Almost surely, 2^16518493358 is an apocalyptic number.

16518493358 is a deficient number, since it is larger than the sum of its proper divisors (8726751370).

16518493358 is a wasteful number, since it uses less digits than its factorization.

16518493358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155834898.

The product of its digits is 3110400, while the sum is 53.

The spelling of 16518493358 in words is "sixteen billion, five hundred eighteen million, four hundred ninety-three thousand, three hundred fifty-eight".