16668517037037 has 16 divisors (see below), whose sum is σ = 23111430036480. Its totient is φ = 10672986766400.

The previous prime is 16668517037033. The next prime is 16668517037047. The reversal of 16668517037037 is 73073071586661.

It is a cyclic number.

It is not a de Polignac number, because 16668517037037 - 2² = 16668517037033 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16668517037033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 501533514 + ... + 501566747.

It is an arithmetic number, because the mean of its divisors is an integer number (1444464377280).

Almost surely, 2^{16668517037037} is an apocalyptic number.

It is an amenable number.

16668517037037 is a deficient number, since it is larger than the sum of its proper divisors (6442912999443).

16668517037037 is a wasteful number, since it uses less digits than its factorization.

16668517037037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003100484.

The product of its (nonzero) digits is 26671680, while the sum is 60.

The spelling of 16668517037037 in words is "sixteen trillion, six hundred sixty-eight billion, five hundred seventeen million, thirty-seven thousand, thirty-seven".