66363305123 has 8 divisors (see below), whose sum is σ = 67209105600. Its totient is φ = 65517648768.

The previous prime is 66363305053. The next prime is 66363305143. The reversal of 66363305123 is 32150336366.

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 66363305123 - 2¹² = 66363301027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66363305143) 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, 1128923 + ... + 1186251.

It is an arithmetic number, because the mean of its divisors is an integer number (8401138200).

Almost surely, 2^66363305123 is an apocalyptic number.

66363305123 is a deficient number, since it is larger than the sum of its proper divisors (845800477).

66363305123 is a wasteful number, since it uses less digits than its factorization.

66363305123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72061.

The product of its (nonzero) digits is 174960, while the sum is 38.

The spelling of 66363305123 in words is "sixty-six billion, three hundred sixty-three million, three hundred five thousand, one hundred twenty-three".