2159660000449 has 4 divisors (see below), whose sum is σ = 2468182857664. Its totient is φ = 1851137143236.

The previous prime is 2159660000369. The next prime is 2159660000453. The reversal of 2159660000449 is 9440000669512.

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 2159660000449 - 2¹¹ = 2159659998401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2159660000399 and 2159660000408.

It is not an unprimeable number, because it can be changed into a prime (2159660000749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154261428597 + ... + 154261428610.

It is an arithmetic number, because the mean of its divisors is an integer number (617045714416).

Almost surely, 2^{2159660000449} is an apocalyptic number.

It is an amenable number.

2159660000449 is a deficient number, since it is larger than the sum of its proper divisors (308522857215).

2159660000449 is an equidigital number, since it uses as much as digits as its factorization.

2159660000449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308522857214.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 2159660000449 in words is "two trillion, one hundred fifty-nine billion, six hundred sixty million, four hundred forty-nine", and thus it is an aban number.