20016166665616 has 40 divisors (see below), whose sum is σ = 42526104521184. Its totient is φ = 9051116328960.

The previous prime is 20016166665563. The next prime is 20016166665637. The reversal of 20016166665616 is 61656666161002.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 294598726 + ... + 294666661.

Almost surely, 2^{20016166665616} is an apocalyptic number.

It is an amenable number.

20016166665616 is an abundant number, since it is smaller than the sum of its proper divisors (22509937855568).

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

20016166665616 is a wasteful number, since it uses less digits than its factorization.

20016166665616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589265599 (or 589265593 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 20016166665616 in words is "twenty trillion, sixteen billion, one hundred sixty-six million, six hundred sixty-five thousand, six hundred sixteen".