12720066037 has 8 divisors (see below), whose sum is σ = 14597540672. Its totient is φ = 10857672000.

The previous prime is 12720066019. The next prime is 12720066049. The reversal of 12720066037 is 73066002721.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-12720066037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12720065993 and 12720066011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12720066067) 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, 3768339 + ... + 3771712.

It is an arithmetic number, because the mean of its divisors is an integer number (1824692584).

Almost surely, 2^12720066037 is an apocalyptic number.

It is an amenable number.

12720066037 is a deficient number, since it is larger than the sum of its proper divisors (1877474635).

12720066037 is an equidigital number, since it uses as much as digits as its factorization.

12720066037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7540299.

The product of its (nonzero) digits is 21168, while the sum is 34.

Adding to 12720066037 its reverse (73066002721), we get a palindrome (85786068758).

The spelling of 12720066037 in words is "twelve billion, seven hundred twenty million, sixty-six thousand, thirty-seven".