66474630146663 has 8 divisors (see below), whose sum is σ = 68767001194080. Its totient is φ = 64182268594080.

The previous prime is 66474630146539. The next prime is 66474630146689. The reversal of 66474630146663 is 36664103647466.

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 66474630146663 - 2¹² = 66474630142567 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66474630146596 and 66474630146605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66474630146263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13719353 + ... + 17921213.

It is an arithmetic number, because the mean of its divisors is an integer number (8595875149260).

Almost surely, 2^{66474630146663} is an apocalyptic number.

66474630146663 is a deficient number, since it is larger than the sum of its proper divisors (2292371047417).

66474630146663 is a wasteful number, since it uses less digits than its factorization.

66474630146663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4747417.

The product of its (nonzero) digits is 188116992, while the sum is 62.

The spelling of 66474630146663 in words is "sixty-six trillion, four hundred seventy-four billion, six hundred thirty million, one hundred forty-six thousand, six hundred sixty-three".