16868502020351 has 4 divisors (see below), whose sum is σ = 16868621245272. Its totient is φ = 16868382795432.

The previous prime is 16868502020317. The next prime is 16868502020387. The reversal of 16868502020351 is 15302020586861.

16868502020351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16868502020351 - 2¹⁴ = 16868502003967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16868502020296 and 16868502020305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16868502020551) 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, 59399981 + ... + 59683286.

It is an arithmetic number, because the mean of its divisors is an integer number (4217155311318).

Almost surely, 2^{16868502020351} is an apocalyptic number.

16868502020351 is a deficient number, since it is larger than the sum of its proper divisors (119224921).

16868502020351 is a wasteful number, since it uses less digits than its factorization.

16868502020351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119224920.

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 16868502020351 in words is "sixteen trillion, eight hundred sixty-eight billion, five hundred two million, twenty thousand, three hundred fifty-one".