16233188967857 has 4 divisors (see below), whose sum is σ = 16243668755700. Its totient is φ = 16222709180016.

The previous prime is 16233188967833. The next prime is 16233188967901. The reversal of 16233188967857 is 75876988133261.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3780131393536 + 12453057574321 = 1944256^2 + 3528889^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16233188967857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16233188967257) 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, 5239891598 + ... + 5239894695.

It is an arithmetic number, because the mean of its divisors is an integer number (4060917188925).

Almost surely, 2^{16233188967857} is an apocalyptic number.

It is an amenable number.

16233188967857 is a deficient number, since it is larger than the sum of its proper divisors (10479787843).

16233188967857 is a wasteful number, since it uses less digits than its factorization.

16233188967857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10479787842.

The product of its digits is 731566080, while the sum is 74.

The spelling of 16233188967857 in words is "sixteen trillion, two hundred thirty-three billion, one hundred eighty-eight million, nine hundred sixty-seven thousand, eight hundred fifty-seven".