66668133469 has 8 divisors (see below), whose sum is σ = 76225399040. Its totient is φ = 57119179536.

The previous prime is 66668133461. The next prime is 66668133473. The reversal of 66668133469 is 96433186666.

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 66668133469 - 2³ = 66668133461 is a prime.

It is a super-2 number, since 2×66668133469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66668133461) by changing a digit.

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, 2060709 + ... + 2092810.

It is an arithmetic number, because the mean of its divisors is an integer number (9528174880).

Almost surely, 2^66668133469 is an apocalyptic number.

It is an amenable number.

66668133469 is a deficient number, since it is larger than the sum of its proper divisors (9557265571).

66668133469 is a wasteful number, since it uses less digits than its factorization.

66668133469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4155819.

The product of its digits is 20155392, while the sum is 58.

The spelling of 66668133469 in words is "sixty-six billion, six hundred sixty-eight million, one hundred thirty-three thousand, four hundred sixty-nine".