16669542 has 8 divisors (see below), whose sum is σ = 33339096. Its totient is φ = 5556512.

The previous prime is 16669529. The next prime is 16669559. The reversal of 16669542 is 24596661.

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

16669542 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 16669542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1389123 + ... + 1389134.

It is an arithmetic number, because the mean of its divisors is an integer number (4167387).

Almost surely, 2^16669542 is an apocalyptic number.

16669542 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.

16669542 is a wasteful number, since it uses less digits than its factorization.

16669542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778262.

The product of its digits is 77760, while the sum is 39.

The square root of 16669542 is about 4082.8350444269. The cubic root of 16669542 is about 255.4511659202.

The spelling of 16669542 in words is "sixteen million, six hundred sixty-nine thousand, five hundred forty-two".