66463305 has 8 divisors (see below), whose sum is σ = 106341312. Its totient is φ = 35447088.

The previous prime is 66463289. The next prime is 66463379. The reversal of 66463305 is 50336466.

It is a happy number.

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

It is not a de Polignac number, because 66463305 - 2⁴ = 66463289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2215429 + ... + 2215458.

It is an arithmetic number, because the mean of its divisors is an integer number (13292664).

Almost surely, 2^66463305 is an apocalyptic number.

It is an amenable number.

66463305 is a deficient number, since it is larger than the sum of its proper divisors (39878007).

66463305 is a wasteful number, since it uses less digits than its factorization.

66463305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4430895.

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 66463305 is about 8152.5029898799. The cubic root of 66463305 is about 405.0674175225.

The spelling of 66463305 in words is "sixty-six million, four hundred sixty-three thousand, three hundred five".