16868502020353 has 4 divisors (see below), whose sum is σ = 17412647246848. Its totient is φ = 16324356793860.

The previous prime is 16868502020317. The next prime is 16868502020387. The reversal of 16868502020353 is 35302020586861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16868502020353 - 2¹³ = 16868502012161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16868502020297 and 16868502020306.

It is not an unprimeable number, because it can be changed into a prime (16868502020303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272072613201 + ... + 272072613262.

It is an arithmetic number, because the mean of its divisors is an integer number (4353161811712).

Almost surely, 2^{16868502020353} is an apocalyptic number.

It is an amenable number.

16868502020353 is a deficient number, since it is larger than the sum of its proper divisors (544145226495).

16868502020353 is an equidigital number, since it uses as much as digits as its factorization.

16868502020353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544145226494.

The product of its (nonzero) digits is 2073600, while the sum is 49.

The spelling of 16868502020353 in words is "sixteen trillion, eight hundred sixty-eight billion, five hundred two million, twenty thousand, three hundred fifty-three".