12016565357842 has 8 divisors (see below), whose sum is σ = 18271763763516. Its totient is φ = 5925977436672.

The previous prime is 12016565357837. The next prime is 12016565357857. The reversal of 12016565357842 is 24875356561021.

It can be written as a sum of positive squares in 2 ways, for example, as 10765230043681 + 1251335314161 = 3281041^2 + 1118631^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41152620943 + ... + 41152621234.

Almost surely, 2^{12016565357842} is an apocalyptic number.

12016565357842 is a deficient number, since it is larger than the sum of its proper divisors (6255198405674).

12016565357842 is an equidigital number, since it uses as much as digits as its factorization.

12016565357842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82305242252.

The product of its (nonzero) digits is 12096000, while the sum is 55.

The spelling of 12016565357842 in words is "twelve trillion, sixteen billion, five hundred sixty-five million, three hundred fifty-seven thousand, eight hundred forty-two".