1326555680612 has 6 divisors (see below), whose sum is σ = 2321472441078. Its totient is φ = 663277840304.

The previous prime is 1326555680573. The next prime is 1326555680647. The reversal of 1326555680612 is 2160865556231.

It can be written as a sum of positive squares in only one way, i.e., 1165743452416 + 160812228196 = 1079696^2 + 401014^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165819460073 + ... + 165819460080.

It is an arithmetic number, because the mean of its divisors is an integer number (386912073513).

Almost surely, 2^{1326555680612} is an apocalyptic number.

It is an amenable number.

1326555680612 is a deficient number, since it is larger than the sum of its proper divisors (994916760466).

1326555680612 is a wasteful number, since it uses less digits than its factorization.

1326555680612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331638920157 (or 331638920155 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 50.

The spelling of 1326555680612 in words is "one trillion, three hundred twenty-six billion, five hundred fifty-five million, six hundred eighty thousand, six hundred twelve".