1666153715013 has 48 divisors (see below), whose sum is σ = 2441927584512. Its totient is φ = 1094623200000.

The previous prime is 1666153715011. The next prime is 1666153715047. The reversal of 1666153715013 is 3105173516661.

It is not a de Polignac number, because 1666153715013 - 2¹ = 1666153715011 is a prime.

It is a super-3 number, since 3×1666153715013³ (a number of 38 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1666153715013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1666153715011) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 504740463 + ... + 504743763.

It is an arithmetic number, because the mean of its divisors is an integer number (50873491344).

Almost surely, 2^{1666153715013} is an apocalyptic number.

It is an amenable number.

1666153715013 is a deficient number, since it is larger than the sum of its proper divisors (775773869499).

1666153715013 is a wasteful number, since it uses less digits than its factorization.

1666153715013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6306 (or 6303 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The spelling of 1666153715013 in words is "one trillion, six hundred sixty-six billion, one hundred fifty-three million, seven hundred fifteen thousand, thirteen".