66682804026 has 16 divisors (see below), whose sum is σ = 133371365184. Its totient is φ = 22226641824.

The previous prime is 66682804009. The next prime is 66682804057. The reversal of 66682804026 is 62040828666.

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, 81235 + ... + 374118.

It is an arithmetic number, because the mean of its divisors is an integer number (8335710324).

Almost surely, 2^66682804026 is an apocalyptic number.

66682804026 is an abundant number, since it is smaller than the sum of its proper divisors (66688561158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66682804026 is a wasteful number, since it uses less digits than its factorization.

66682804026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479765.

The product of its (nonzero) digits is 1327104, while the sum is 48.

The spelling of 66682804026 in words is "sixty-six billion, six hundred eighty-two million, eight hundred four thousand, twenty-six".