15832868268661 has 4 divisors (see below), whose sum is σ = 15832885320000. Its totient is φ = 15832851217324.

The previous prime is 15832868268599. The next prime is 15832868268683. The reversal of 15832868268661 is 16686286823851.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15832868268661 - 2¹⁵ = 15832868235893 is a prime.

It is a super-2 number, since 2×15832868268661² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15832868268761) 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, 7047421 + ... + 9018418.

It is an arithmetic number, because the mean of its divisors is an integer number (3958221330000).

Almost surely, 2^{15832868268661} is an apocalyptic number.

It is an amenable number.

15832868268661 is a deficient number, since it is larger than the sum of its proper divisors (17051339).

15832868268661 is an equidigital number, since it uses as much as digits as its factorization.

15832868268661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17051338.

The product of its digits is 318504960, while the sum is 70.

The spelling of 15832868268661 in words is "fifteen trillion, eight hundred thirty-two billion, eight hundred sixty-eight million, two hundred sixty-eight thousand, six hundred sixty-one".