16662075558 has 8 divisors (see below), whose sum is σ = 33324151128. Its totient is φ = 5554025184.

The previous prime is 16662075557. The next prime is 16662075569. The reversal of 16662075558 is 85557026661.

It is a happy number.

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

16662075558 is an admirable number.

It is a super-3 number, since 3×16662075558³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 16662075558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16662075557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1388506291 + ... + 1388506302.

It is an arithmetic number, because the mean of its divisors is an integer number (4165518891).

Almost surely, 2^16662075558 is an apocalyptic number.

16662075558 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16662075558 is a wasteful number, since it uses less digits than its factorization.

16662075558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777012598.

The product of its (nonzero) digits is 3024000, while the sum is 51.

The spelling of 16662075558 in words is "sixteen billion, six hundred sixty-two million, seventy-five thousand, five hundred fifty-eight".