66000612026 has 4 divisors (see below), whose sum is σ = 99000918042. Its totient is φ = 33000306012.

The previous prime is 66000612011. The next prime is 66000612043. The reversal of 66000612026 is 62021600066.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62021600066 = 2 ⋅31010800033.

It can be written as a sum of positive squares in only one way, i.e., 37966132801 + 28034479225 = 194849^2 + 167435^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 66000612026.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16500153005 + ... + 16500153008.

Almost surely, 2^66000612026 is an apocalyptic number.

66000612026 is a deficient number, since it is larger than the sum of its proper divisors (33000306016).

66000612026 is a wasteful number, since it uses less digits than its factorization.

66000612026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33000306015.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 66000612026 in words is "sixty-six billion, six hundred twelve thousand, twenty-six".