66464422446466 has 16 divisors (see below), whose sum is σ = 108763231169088. Its totient is φ = 30210193566000.

The previous prime is 66464422446431. The next prime is 66464422446481.

It is a happy number.

66464422446466 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×66464422446466² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66464422446398 and 66464422446407.

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, 44628030 + ... + 46093273.

It is an arithmetic number, because the mean of its divisors is an integer number (6797701948068).

Almost surely, 2^{66464422446466} is an apocalyptic number.

66464422446466 is a deficient number, since it is larger than the sum of its proper divisors (42298808722622).

66464422446466 is a wasteful number, since it uses less digits than its factorization.

66464422446466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90754617.

The product of its digits is 764411904, while the sum is 64.

The spelling of 66464422446466 in words is "sixty-six trillion, four hundred sixty-four billion, four hundred twenty-two million, four hundred forty-six thousand, four hundred sixty-six".