66042893706395 has 8 divisors (see below), whose sum is σ = 79264310889456. Its totient is φ = 52825756003936.

The previous prime is 66042893706373. The next prime is 66042893706407. The reversal of 66042893706395 is 59360739824066.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 66042893706395 - 2²⁴ = 66042876929179 is a prime.

It is a super-2 number, since 2×66042893706395² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1069836197 + ... + 1069897926.

It is an arithmetic number, because the mean of its divisors is an integer number (9908038861182).

Almost surely, 2^{66042893706395} is an apocalyptic number.

66042893706395 is a deficient number, since it is larger than the sum of its proper divisors (13221417183061).

66042893706395 is a wasteful number, since it uses less digits than its factorization.

66042893706395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139740301.

The product of its (nonzero) digits is 352719360, while the sum is 68.

The spelling of 66042893706395 in words is "sixty-six trillion, forty-two billion, eight hundred ninety-three million, seven hundred six thousand, three hundred ninety-five".