66333664104461 has 32 divisors (see below), whose sum is σ = 74732024062080. Its totient is φ = 58477926640896.

The previous prime is 66333664104437. The next prime is 66333664104467. The reversal of 66333664104461 is 16440146633366.

It is not a de Polignac number, because 66333664104461 - 2¹⁸ = 66333663842317 is a prime.

It is a super-2 number, since 2×66333664104461² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66333664104467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 302291 + ... + 11522096.

It is an arithmetic number, because the mean of its divisors is an integer number (2335375751940).

Almost surely, 2^{66333664104461} is an apocalyptic number.

It is an amenable number.

66333664104461 is a deficient number, since it is larger than the sum of its proper divisors (8398359957619).

66333664104461 is a wasteful number, since it uses less digits than its factorization.

66333664104461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11824653.

The product of its (nonzero) digits is 13436928, while the sum is 53.

The spelling of 66333664104461 in words is "sixty-six trillion, three hundred thirty-three billion, six hundred sixty-four million, one hundred four thousand, four hundred sixty-one".