66375244215343 has 16 divisors (see below), whose sum is σ = 78474083688000. Its totient is φ = 54930614602752.

The previous prime is 66375244215323. The next prime is 66375244215391. The reversal of 66375244215343 is 34351244257366.

It is a de Polignac number, because none of the positive numbers 2^k-66375244215343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66375244215323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16571493 + ... + 20183281.

It is an arithmetic number, because the mean of its divisors is an integer number (4904630230500).

Almost surely, 2^{66375244215343} is an apocalyptic number.

66375244215343 is a deficient number, since it is larger than the sum of its proper divisors (12098839472657).

66375244215343 is a wasteful number, since it uses less digits than its factorization.

66375244215343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3702354.

The product of its digits is 43545600, while the sum is 55.

The spelling of 66375244215343 in words is "sixty-six trillion, three hundred seventy-five billion, two hundred forty-four million, two hundred fifteen thousand, three hundred forty-three".