66331405035411 has 16 divisors (see below), whose sum is σ = 90499063286016. Its totient is φ = 43192350877536.

The previous prime is 66331405035407. The next prime is 66331405035419. The reversal of 66331405035411 is 11453050413366.

It is not a de Polignac number, because 66331405035411 - 2² = 66331405035407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66331405035419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31629181 + ... + 33661073.

It is an arithmetic number, because the mean of its divisors is an integer number (5656191455376).

Almost surely, 2^{66331405035411} is an apocalyptic number.

66331405035411 is a deficient number, since it is larger than the sum of its proper divisors (24167658250605).

66331405035411 is a wasteful number, since it uses less digits than its factorization.

66331405035411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285002.

The product of its (nonzero) digits is 388800, while the sum is 42.

Adding to 66331405035411 its reverse (11453050413366), we get a palindrome (77784455448777).

The spelling of 66331405035411 in words is "sixty-six trillion, three hundred thirty-one billion, four hundred five million, thirty-five thousand, four hundred eleven".