66660068192255 has 8 divisors (see below), whose sum is σ = 79994517914400. Its totient is φ = 53326430498016.

The previous prime is 66660068192239. The next prime is 66660068192273. The reversal of 66660068192255 is 55229186006666.

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

It is a cyclic number.

It is not a de Polignac number, because 66660068192255 - 2⁴ = 66660068192239 is a prime.

It is a congruent number.

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, 202826360 + ... + 203154749.

It is an arithmetic number, because the mean of its divisors is an integer number (9999314739300).

Almost surely, 2^{66660068192255} is an apocalyptic number.

66660068192255 is a deficient number, since it is larger than the sum of its proper divisors (13334449722145).

66660068192255 is a wasteful number, since it uses less digits than its factorization.

66660068192255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406013953.

The product of its (nonzero) digits is 55987200, while the sum is 62.

The spelling of 66660068192255 in words is "sixty-six trillion, six hundred sixty billion, sixty-eight million, one hundred ninety-two thousand, two hundred fifty-five".