12303664515 has 24 divisors (see below), whose sum is σ = 21344411088. Its totient is φ = 6556397760.

The previous prime is 12303664463. The next prime is 12303664537. The reversal of 12303664515 is 51546630321.

12303664515 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 3 + 6 + 645 + 1 + 5 = 666.

12303664515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12303664515 - 2¹² = 12303660419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12303664515.

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 23 ways as a sum of consecutive naturals, for example, 61756 + ... + 168585.

It is an arithmetic number, because the mean of its divisors is an integer number (889350462).

Almost surely, 2^12303664515 is an apocalyptic number.

12303664515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12303664515 is a deficient number, since it is larger than the sum of its proper divisors (9040746573).

12303664515 is a wasteful number, since it uses less digits than its factorization.

12303664515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231539 (or 231536 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 12303664515 in words is "twelve billion, three hundred three million, six hundred sixty-four thousand, five hundred fifteen".