66673016484523 has 4 divisors (see below), whose sum is σ = 66673880190648. Its totient is φ = 66672152778400.

The previous prime is 66673016484467. The next prime is 66673016484551. The reversal of 66673016484523 is 32548461037666.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66673016484523 is a prime.

It is a super-2 number, since 2×66673016484523² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66673016484583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431737261 + ... + 431891662.

It is an arithmetic number, because the mean of its divisors is an integer number (16668470047662).

Almost surely, 2^{66673016484523} is an apocalyptic number.

66673016484523 is a deficient number, since it is larger than the sum of its proper divisors (863706125).

66673016484523 is an equidigital number, since it uses as much as digits as its factorization.

66673016484523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863706124.

The product of its (nonzero) digits is 104509440, while the sum is 61.

The spelling of 66673016484523 in words is "sixty-six trillion, six hundred seventy-three billion, sixteen million, four hundred eighty-four thousand, five hundred twenty-three".