12015715573 has 4 divisors (see below), whose sum is σ = 12016385248. Its totient is φ = 12015045900.

The previous prime is 12015715571. The next prime is 12015715633. The reversal of 12015715573 is 37551751021.

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 12015715573 - 2¹ = 12015715571 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 (12015715571) 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, 307161 + ... + 344062.

It is an arithmetic number, because the mean of its divisors is an integer number (3004096312).

Almost surely, 2^12015715573 is an apocalyptic number.

It is an amenable number.

12015715573 is a deficient number, since it is larger than the sum of its proper divisors (669675).

12015715573 is an equidigital number, since it uses as much as digits as its factorization.

12015715573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669674.

The product of its (nonzero) digits is 36750, while the sum is 37.

The spelling of 12015715573 in words is "twelve billion, fifteen million, seven hundred fifteen thousand, five hundred seventy-three".