66465856466 has 8 divisors (see below), whose sum is σ = 102914874624. Its totient is φ = 32160898260.

The previous prime is 66465856441. The next prime is 66465856489.

It is a happy number.

66465856466 is nontrivially palindromic in base 10.

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

It is a Harshad number since it is a multiple of its sum of digits (62), and also a Moran number because the ratio is a prime number: 1072029943 = 66465856466 / (6 + 6 + 4 + 6 + 5 + 8 + 5 + 6 + 4 + 6 + 6).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66465856399 and 66465856408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536014910 + ... + 536015033.

It is an arithmetic number, because the mean of its divisors is an integer number (12864359328).

Almost surely, 2^66465856466 is an apocalyptic number.

66465856466 is a deficient number, since it is larger than the sum of its proper divisors (36449018158).

66465856466 is a wasteful number, since it uses less digits than its factorization.

66465856466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072029976.

The product of its digits is 149299200, while the sum is 62.

The spelling of 66465856466 in words is "sixty-six billion, four hundred sixty-five million, eight hundred fifty-six thousand, four hundred sixty-six".