12661683159 has 8 divisors (see below), whose sum is σ = 16895963392. Its totient is φ = 8434262520.

The previous prime is 12661683157. The next prime is 12661683227. The reversal of 12661683159 is 95138616621.

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

It is not a de Polignac number, because 12661683159 - 2¹ = 12661683157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12661683157) 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, 1710589 + ... + 1717974.

It is an arithmetic number, because the mean of its divisors is an integer number (2111995424).

Almost surely, 2^12661683159 is an apocalyptic number.

12661683159 is a deficient number, since it is larger than the sum of its proper divisors (4234280233).

12661683159 is a wasteful number, since it uses less digits than its factorization.

12661683159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3429797.

The product of its digits is 466560, while the sum is 48.

The spelling of 12661683159 in words is "twelve billion, six hundred sixty-one million, six hundred eighty-three thousand, one hundred fifty-nine".