12155002579 has 4 divisors (see below), whose sum is σ = 12683480976. Its totient is φ = 11626524184.

The previous prime is 12155002523. The next prime is 12155002589. The reversal of 12155002579 is 97520055121.

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

It is a cyclic number.

It is not a de Polignac number, because 12155002579 - 2⁷ = 12155002451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12155002589) 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, 264239164 + ... + 264239209.

It is an arithmetic number, because the mean of its divisors is an integer number (3170870244).

Almost surely, 2^12155002579 is an apocalyptic number.

12155002579 is a deficient number, since it is larger than the sum of its proper divisors (528478397).

12155002579 is an equidigital number, since it uses as much as digits as its factorization.

12155002579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528478396.

The product of its (nonzero) digits is 31500, while the sum is 37.

The spelling of 12155002579 in words is "twelve billion, one hundred fifty-five million, two thousand, five hundred seventy-nine".