66366592608228 has 24 divisors (see below), whose sum is σ = 168933144821280. Its totient is φ = 20111088669120.

The previous prime is 66366592608193. The next prime is 66366592608293. The reversal of 66366592608228 is 82280629566366.

It is a super-2 number, since 2×66366592608228² (a number of 28 digits) contains 22 as substring.

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, 251388608233 + ... + 251388608496.

It is an arithmetic number, because the mean of its divisors is an integer number (7038881034220).

Almost surely, 2^{66366592608228} is an apocalyptic number.

It is an amenable number.

66366592608228 is an abundant number, since it is smaller than the sum of its proper divisors (102566552213052).

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

66366592608228 is a wasteful number, since it uses less digits than its factorization.

66366592608228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502777216747 (or 502777216745 counting only the distinct ones).

The product of its (nonzero) digits is 537477120, while the sum is 69.

The spelling of 66366592608228 in words is "sixty-six trillion, three hundred sixty-six billion, five hundred ninety-two million, six hundred eight thousand, two hundred twenty-eight".