66336123355 has 8 divisors (see below), whose sum is σ = 79605202464. Its totient is φ = 53067662400.

The previous prime is 66336123323. The next prime is 66336123391. The reversal of 66336123355 is 55332163366.

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

It is not a de Polignac number, because 66336123355 - 2⁵ = 66336123323 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128775 + ... + 386335.

It is an arithmetic number, because the mean of its divisors is an integer number (9950650308).

Almost surely, 2^66336123355 is an apocalyptic number.

66336123355 is a deficient number, since it is larger than the sum of its proper divisors (13269079109).

66336123355 is a wasteful number, since it uses less digits than its factorization.

66336123355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309077.

The product of its digits is 874800, while the sum is 43.

The spelling of 66336123355 in words is "sixty-six billion, three hundred thirty-six million, one hundred twenty-three thousand, three hundred fifty-five".