227203899966 has 32 divisors (see below), whose sum is σ = 509365689120. Its totient is φ = 75064413312.

The previous prime is 227203899919. The next prime is 227203899973. The reversal of 227203899966 is 669998302722.

227203899966 is a `hidden beast` number, since 227 + 20 + 389 + 9 + 9 + 6 + 6 = 666.

227203899966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×227203899966² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18611065 + ... + 18623268.

It is an arithmetic number, because the mean of its divisors is an integer number (15917677785).

Almost surely, 2^227203899966 is an apocalyptic number.

227203899966 is an abundant number, since it is smaller than the sum of its proper divisors (282161789154).

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

227203899966 is a wasteful number, since it uses less digits than its factorization.

227203899966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37234457 (or 37234451 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 63.

The spelling of 227203899966 in words is "two hundred twenty-seven billion, two hundred three million, eight hundred ninety-nine thousand, nine hundred sixty-six".