16287763664251 has 4 divisors (see below), whose sum is σ = 16299129865032. Its totient is φ = 16276397463472.

The previous prime is 16287763664239. The next prime is 16287763664261. The reversal of 16287763664251 is 15246636778261.

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 16287763664251 - 2¹⁷ = 16287763533179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16287763664261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5683098241 + ... + 5683101106.

It is an arithmetic number, because the mean of its divisors is an integer number (4074782466258).

Almost surely, 2^{16287763664251} is an apocalyptic number.

16287763664251 is a deficient number, since it is larger than the sum of its proper divisors (11366200781).

16287763664251 is a wasteful number, since it uses less digits than its factorization.

16287763664251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11366200780.

The product of its digits is 121927680, while the sum is 64.

The spelling of 16287763664251 in words is "sixteen trillion, two hundred eighty-seven billion, seven hundred sixty-three million, six hundred sixty-four thousand, two hundred fifty-one".