66288460268 has 24 divisors (see below), whose sum is σ = 121534178304. Its totient is φ = 31596325200.

The previous prime is 66288460261. The next prime is 66288460291. The reversal of 66288460268 is 86206488266.

It is not an unprimeable number, because it can be changed into a prime (66288460261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3981128 + ... + 3997743.

It is an arithmetic number, because the mean of its divisors is an integer number (5063924096).

Almost surely, 2^66288460268 is an apocalyptic number.

It is an amenable number.

66288460268 is a deficient number, since it is larger than the sum of its proper divisors (55245718036).

66288460268 is a wasteful number, since it uses less digits than its factorization.

66288460268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7978973 (or 7978971 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 56.

The spelling of 66288460268 in words is "sixty-six billion, two hundred eighty-eight million, four hundred sixty thousand, two hundred sixty-eight".