12423653565 has 8 divisors (see below), whose sum is σ = 19877845728. Its totient is φ = 6625948560.

The previous prime is 12423653551. The next prime is 12423653579. The reversal of 12423653565 is 56535632421.

It is a happy number.

12423653565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12423653551) and next prime (12423653579).

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

It is not a de Polignac number, because 12423653565 - 2⁴ = 12423653549 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414121771 + ... + 414121800.

It is an arithmetic number, because the mean of its divisors is an integer number (2484730716).

Almost surely, 2^12423653565 is an apocalyptic number.

12423653565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12423653565 is a deficient number, since it is larger than the sum of its proper divisors (7454192163).

12423653565 is an equidigital number, since it uses as much as digits as its factorization.

12423653565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828243579.

The product of its digits is 648000, while the sum is 42.

The spelling of 12423653565 in words is "twelve billion, four hundred twenty-three million, six hundred fifty-three thousand, five hundred sixty-five".