16665016 has 8 divisors (see below), whose sum is σ = 31246920. Its totient is φ = 8332504.

The previous prime is 16665001. The next prime is 16665023. The reversal of 16665016 is 61056661.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1041556 + ... + 1041571.

It is an arithmetic number, because the mean of its divisors is an integer number (3905865).

Almost surely, 2^16665016 is an apocalyptic number.

It is an amenable number.

16665016 is a deficient number, since it is larger than the sum of its proper divisors (14581904).

16665016 is a wasteful number, since it uses less digits than its factorization.

16665016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083133 (or 2083129 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 16665016 is about 4082.2807350794. The cubic root of 16665016 is about 255.4280443765.

The spelling of 16665016 in words is "sixteen million, six hundred sixty-five thousand, sixteen".