12646818007355 has 32 divisors (see below), whose sum is σ = 17911317086208. Its totient is φ = 8388787104000.

The previous prime is 12646818007333. The next prime is 12646818007361. The reversal of 12646818007355 is 55370081864621.

It is not a de Polignac number, because 12646818007355 - 2¹⁴ = 12646817990971 is a prime.

It is a super-2 number, since 2×12646818007355² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12646818007355.

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 31 ways as a sum of consecutive naturals, for example, 71879 + ... + 5029791.

It is an arithmetic number, because the mean of its divisors is an integer number (559728658944).

Almost surely, 2^{12646818007355} is an apocalyptic number.

12646818007355 is a deficient number, since it is larger than the sum of its proper divisors (5264499078853).

12646818007355 is a wasteful number, since it uses less digits than its factorization.

12646818007355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4960307.

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 12646818007355 in words is "twelve trillion, six hundred forty-six billion, eight hundred eighteen million, seven thousand, three hundred fifty-five".