12259145559 has 4 divisors (see below), whose sum is σ = 16345527416. Its totient is φ = 8172763704.

The previous prime is 12259145551. The next prime is 12259145599. The reversal of 12259145559 is 95554195221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12259145559 - 2³ = 12259145551 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 (12259145551) 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, 2043190924 + ... + 2043190929.

It is an arithmetic number, because the mean of its divisors is an integer number (4086381854).

Almost surely, 2^12259145559 is an apocalyptic number.

12259145559 is a deficient number, since it is larger than the sum of its proper divisors (4086381857).

12259145559 is an equidigital number, since it uses as much as digits as its factorization.

12259145559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4086381856.

The product of its digits is 810000, while the sum is 48.

The spelling of 12259145559 in words is "twelve billion, two hundred fifty-nine million, one hundred forty-five thousand, five hundred fifty-nine".