66449494466 has 8 divisors (see below), whose sum is σ = 104920254480. Its totient is φ = 31476076308.

The previous prime is 66449494411. The next prime is 66449494493.

It is a happy number.

66449494466 is nontrivially palindromic in base 10.

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

It is a junction number, because it is equal to n+sod(n) for n = 66449494399 and 66449494408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 874335416 + ... + 874335491.

It is an arithmetic number, because the mean of its divisors is an integer number (13115031810).

Almost surely, 2^66449494466 is an apocalyptic number.

66449494466 is a deficient number, since it is larger than the sum of its proper divisors (38470760014).

66449494466 is a wasteful number, since it uses less digits than its factorization.

66449494466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748670928.

The product of its digits is 107495424, while the sum is 62.

The spelling of 66449494466 in words is "sixty-six billion, four hundred forty-nine million, four hundred ninety-four thousand, four hundred sixty-six".