16660375155717 has 8 divisors (see below), whose sum is σ = 22214342635200. Its totient is φ = 11106662223360.

The previous prime is 16660375155713. The next prime is 16660375155727. The reversal of 16660375155717 is 71755157306661.

16660375155717 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 16660375155717 - 2² = 16660375155713 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16660375155713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63484009 + ... + 63745902.

It is an arithmetic number, because the mean of its divisors is an integer number (2776792829400).

Almost surely, 2^{16660375155717} is an apocalyptic number.

It is an amenable number.

16660375155717 is a deficient number, since it is larger than the sum of its proper divisors (5553967479483).

16660375155717 is a wasteful number, since it uses less digits than its factorization.

16660375155717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127273563.

The product of its (nonzero) digits is 27783000, while the sum is 60.

The spelling of 16660375155717 in words is "sixteen trillion, six hundred sixty billion, three hundred seventy-five million, one hundred fifty-five thousand, seven hundred seventeen".