66516849004 has 12 divisors (see below), whose sum is σ = 116479162800. Its totient is φ = 33237088208.

The previous prime is 66516849001. The next prime is 66516849013. The reversal of 66516849004 is 40094861566.

It is not an unprimeable number, because it can be changed into a prime (66516849001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5327059 + ... + 5339530.

It is an arithmetic number, because the mean of its divisors is an integer number (9706596900).

Almost surely, 2^66516849004 is an apocalyptic number.

It is an amenable number.

66516849004 is a deficient number, since it is larger than the sum of its proper divisors (49962313796).

66516849004 is a wasteful number, since it uses less digits than its factorization.

66516849004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10668152 (or 10668150 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 66516849004 in words is "sixty-six billion, five hundred sixteen million, eight hundred forty-nine thousand, four".