16666867038 has 8 divisors (see below), whose sum is σ = 33333734088. Its totient is φ = 5555622344.

The previous prime is 16666867027. The next prime is 16666867043. The reversal of 16666867038 is 83076866661.

It is a happy number.

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

16666867038 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1388905581 + ... + 1388905592.

It is an arithmetic number, because the mean of its divisors is an integer number (4166716761).

Almost surely, 2^16666867038 is an apocalyptic number.

16666867038 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.

16666867038 is a wasteful number, since it uses less digits than its factorization.

16666867038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777811178.

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 16666867038 in words is "sixteen billion, six hundred sixty-six million, eight hundred sixty-seven thousand, thirty-eight".