66026655285 has 32 divisors (see below), whose sum is σ = 107637634560. Its totient is φ = 34552051200.

The previous prime is 66026655229. The next prime is 66026655311. The reversal of 66026655285 is 58255662066.

It is a happy number.

It is not a de Polignac number, because 66026655285 - 2⁷ = 66026655157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286020 + ... + 462450.

It is an arithmetic number, because the mean of its divisors is an integer number (3363676080).

Almost surely, 2^66026655285 is an apocalyptic number.

It is an amenable number.

66026655285 is a deficient number, since it is larger than the sum of its proper divisors (41610979275).

66026655285 is a wasteful number, since it uses less digits than its factorization.

66026655285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176909.

The product of its (nonzero) digits is 5184000, while the sum is 51.

The spelling of 66026655285 in words is "sixty-six billion, twenty-six million, six hundred fifty-five thousand, two hundred eighty-five".