66426262466 has 8 divisors (see below), whose sum is σ = 99779930940. Its totient is φ = 33166285488.

The previous prime is 66426262453. The next prime is 66426262477.

66426262466 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 61209234025 + 5217028441 = 247405^2 + 72229^2 .

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

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, 23421101 + ... + 23423936.

Almost surely, 2^66426262466 is an apocalyptic number.

66426262466 is a deficient number, since it is larger than the sum of its proper divisors (33353668474).

66426262466 is a wasteful number, since it uses less digits than its factorization.

66426262466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46845748.

The product of its digits is 5971968, while the sum is 50.

The spelling of 66426262466 in words is "sixty-six billion, four hundred twenty-six million, two hundred sixty-two thousand, four hundred sixty-six".