66037306747 has 2 divisors, whose sum is σ = 66037306748. Its totient is φ = 66037306746.

The previous prime is 66037306663. The next prime is 66037306771. The reversal of 66037306747 is 74760373066.

66037306747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66037306747 - 2¹¹ = 66037304699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66037306747.

It is not a weakly prime, because it can be changed into another prime (66037306787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33018653373 + 33018653374.

It is an arithmetic number, because the mean of its divisors is an integer number (33018653374).

Almost surely, 2^66037306747 is an apocalyptic number.

66037306747 is a deficient number, since it is larger than the sum of its proper divisors (1).

66037306747 is an equidigital number, since it uses as much as digits as its factorization.

66037306747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2667168, while the sum is 49.

The spelling of 66037306747 in words is "sixty-six billion, thirty-seven million, three hundred six thousand, seven hundred forty-seven".