66463343312051 has 8 divisors (see below), whose sum is σ = 75958163728224. Its totient is φ = 56968537167360.

The previous prime is 66463343312033. The next prime is 66463343312059. The reversal of 66463343312051 is 15021334336466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66463343312051 - 2⁶ = 66463343311987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66463343311987 and 66463343312005.

It is not an unprimeable number, because it can be changed into a prime (66463343312059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9701741 + ... + 15068193.

It is an arithmetic number, because the mean of its divisors is an integer number (9494770466028).

Almost surely, 2^{66463343312051} is an apocalyptic number.

66463343312051 is a deficient number, since it is larger than the sum of its proper divisors (9494820416173).

66463343312051 is a wasteful number, since it uses less digits than its factorization.

66463343312051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7135741.

The product of its (nonzero) digits is 2799360, while the sum is 47.

The spelling of 66463343312051 in words is "sixty-six trillion, four hundred sixty-three billion, three hundred forty-three million, three hundred twelve thousand, fifty-one".