12620115616 has 12 divisors (see below), whose sum is σ = 24845852682. Its totient is φ = 6310057792.

The previous prime is 12620115611. The next prime is 12620115637. The reversal of 12620115616 is 61651102621.

12620115616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10448928400 + 2171187216 = 102220^2 + 46596^2 .

It is a super-2 number, since 2×12620115616² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12620115611) by changing a digit.

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 as a sum of consecutive naturals, namely, 197189275 + ... + 197189338.

Almost surely, 2^12620115616 is an apocalyptic number.

12620115616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12620115616 is a deficient number, since it is larger than the sum of its proper divisors (12225737066).

12620115616 is an equidigital number, since it uses as much as digits as its factorization.

12620115616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394378623 (or 394378615 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 12620115616 in words is "twelve billion, six hundred twenty million, one hundred fifteen thousand, six hundred sixteen".