66447411474466 has 48 divisors (see below), whose sum is σ = 109641573185760. Its totient is φ = 30179746080000.

The previous prime is 66447411474443. The next prime is 66447411474517.

66447411474466 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 66447411474398 and 66447411474407.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2060304841 + ... + 2060337091.

It is an arithmetic number, because the mean of its divisors is an integer number (2284199441370).

Almost surely, 2^{66447411474466} is an apocalyptic number.

66447411474466 is a deficient number, since it is larger than the sum of its proper divisors (43194161711294).

66447411474466 is a wasteful number, since it uses less digits than its factorization.

66447411474466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38671 (or 38660 counting only the distinct ones).

The product of its digits is 260112384, while the sum is 64.

The spelling of 66447411474466 in words is "sixty-six trillion, four hundred forty-seven billion, four hundred eleven million, four hundred seventy-four thousand, four hundred sixty-six".