66660000001026 has 16 divisors (see below), whose sum is σ = 133320094768224. Its totient is φ = 22219984205984.

The previous prime is 66660000001019. The next prime is 66660000001027. The reversal of 66660000001026 is 62010000006666.

66660000001026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66660000001027) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 7957246 + ... + 14022758.

It is an arithmetic number, because the mean of its divisors is an integer number (8332505923014).

Almost surely, 2^{66660000001026} is an apocalyptic number.

66660000001026 is an abundant number, since it is smaller than the sum of its proper divisors (66660094767198).

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

66660000001026 is a wasteful number, since it uses less digits than its factorization.

66660000001026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7897185.

The product of its (nonzero) digits is 15552, while the sum is 33.

The spelling of 66660000001026 in words is "sixty-six trillion, six hundred sixty billion, one thousand, twenty-six".