66666022224 has 20 divisors (see below), whose sum is σ = 172220557536. Its totient is φ = 22222007392.

The previous prime is 66666022217. The next prime is 66666022231. The reversal of 66666022224 is 42222066666.

It is an interprime number because it is at equal distance from previous prime (66666022217) and next prime (66666022231).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694437684 + ... + 694437779.

Almost surely, 2^66666022224 is an apocalyptic number.

It is an amenable number.

66666022224 is an abundant number, since it is smaller than the sum of its proper divisors (105554535312).

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

66666022224 is a wasteful number, since it uses less digits than its factorization.

66666022224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388875474 (or 1388875468 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 66666022224 in words is "sixty-six billion, six hundred sixty-six million, twenty-two thousand, two hundred twenty-four".