15668159944043 has 8 divisors (see below), whose sum is σ = 15788356362240. Its totient is φ = 15548070323880.

The previous prime is 15668159944033. The next prime is 15668159944051. The reversal of 15668159944043 is 34044995186651.

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

It is a cyclic number.

It is not a de Polignac number, because 15668159944043 - 2¹⁴ = 15668159927659 is a prime.

It is a super-2 number, since 2×15668159944043² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15668159944033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26404955 + ... + 26991812.

It is an arithmetic number, because the mean of its divisors is an integer number (1973544545280).

Almost surely, 2^{15668159944043} is an apocalyptic number.

15668159944043 is a deficient number, since it is larger than the sum of its proper divisors (120196418197).

15668159944043 is a wasteful number, since it uses less digits than its factorization.

15668159944043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53399017.

The product of its (nonzero) digits is 111974400, while the sum is 65.

The spelling of 15668159944043 in words is "fifteen trillion, six hundred sixty-eight billion, one hundred fifty-nine million, nine hundred forty-four thousand, forty-three".