15800966590449 has 8 divisors (see below), whose sum is σ = 21068228040160. Its totient is φ = 10533841433856.

The previous prime is 15800966590447. The next prime is 15800966590523. The reversal of 15800966590449 is 94409566900851.

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

It is not a de Polignac number, because 15800966590449 - 2¹ = 15800966590447 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 15800966590449.

It is not an unprimeable number, because it can be changed into a prime (15800966590447) 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, 33802459 + ... + 34266720.

It is an arithmetic number, because the mean of its divisors is an integer number (2633528505020).

Almost surely, 2^{15800966590449} is an apocalyptic number.

It is an amenable number.

15800966590449 is a deficient number, since it is larger than the sum of its proper divisors (5267261449711).

15800966590449 is an equidigital number, since it uses as much as digits as its factorization.

15800966590449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68146559.

The product of its (nonzero) digits is 83980800, while the sum is 66.

The spelling of 15800966590449 in words is "fifteen trillion, eight hundred billion, nine hundred sixty-six million, five hundred ninety thousand, four hundred forty-nine".