1305666611213 has 8 divisors (see below), whose sum is σ = 1434141816000. Its totient is φ = 1183166997408.

The previous prime is 1305666611189. The next prime is 1305666611231. The reversal of 1305666611213 is 3121166665031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1305666611213 - 2¹² = 1305666607117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305666611243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1493897288 + ... + 1493898161.

It is an arithmetic number, because the mean of its divisors is an integer number (179267727000).

Almost surely, 2^{1305666611213} is an apocalyptic number.

It is an amenable number.

1305666611213 is a deficient number, since it is larger than the sum of its proper divisors (128475204787).

1305666611213 is a wasteful number, since it uses less digits than its factorization.

1305666611213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2987795491.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 1305666611213 in words is "one trillion, three hundred five billion, six hundred sixty-six million, six hundred eleven thousand, two hundred thirteen".