16668503703357 has 8 divisors (see below), whose sum is σ = 24245096295840. Its totient is φ = 10102123456560.

The previous prime is 16668503703317. The next prime is 16668503703361. The reversal of 16668503703357 is 75330730586661.

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

It is not a de Polignac number, because 16668503703357 - 2³⁸ = 16393625796413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16668503703357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16668503703317) 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, 252553086382 + ... + 252553086447.

It is an arithmetic number, because the mean of its divisors is an integer number (3030637036980).

Almost surely, 2^{16668503703357} is an apocalyptic number.

It is an amenable number.

16668503703357 is a deficient number, since it is larger than the sum of its proper divisors (7576592592483).

16668503703357 is a wasteful number, since it uses less digits than its factorization.

16668503703357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505106172843.

The product of its (nonzero) digits is 57153600, while the sum is 60.

The spelling of 16668503703357 in words is "sixteen trillion, six hundred sixty-eight billion, five hundred three million, seven hundred three thousand, three hundred fifty-seven".