66042064466 has 24 divisors (see below), whose sum is σ = 115572689280. Its totient is φ = 28303727508.

The previous prime is 66042064463. The next prime is 66042064469. The reversal of 66042064466 is 66446024066.

It is an interprime number because it is at equal distance from previous prime (66042064463) and next prime (66042064469).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66042064463) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 948746 + ... + 1015973.

It is an arithmetic number, because the mean of its divisors is an integer number (4815528720).

Almost surely, 2^66042064466 is an apocalyptic number.

66042064466 is a deficient number, since it is larger than the sum of its proper divisors (49530624814).

66042064466 is an frugal number, since it uses more digits than its factorization.

66042064466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964756 (or 1964728 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 44.

The spelling of 66042064466 in words is "sixty-six billion, forty-two million, sixty-four thousand, four hundred sixty-six".