12615017817364 has 12 divisors (see below), whose sum is σ = 22545989290944. Its totient is φ = 6173306591384.

The previous prime is 12615017817343. The next prime is 12615017817461. The reversal of 12615017817364 is 46371871051621.

It is a super-2 number, since 2×12615017817364² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33550579114 + ... + 33550579489.

It is an arithmetic number, because the mean of its divisors is an integer number (1878832440912).

Almost surely, 2^{12615017817364} is an apocalyptic number.

It is an amenable number.

12615017817364 is a deficient number, since it is larger than the sum of its proper divisors (9930971473580).

12615017817364 is a wasteful number, since it uses less digits than its factorization.

12615017817364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67101158654 (or 67101158652 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 52.

Adding to 12615017817364 its reverse (46371871051621), we get a palindrome (58986888868985).

The spelling of 12615017817364 in words is "twelve trillion, six hundred fifteen billion, seventeen million, eight hundred seventeen thousand, three hundred sixty-four".