66037306771 has 2 divisors, whose sum is σ = 66037306772. Its totient is φ = 66037306770.

The previous prime is 66037306747. The next prime is 66037306787. The reversal of 66037306771 is 17760373066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66037306771 - 2¹⁵ = 66037274003 is a prime.

It is not a weakly prime, because it can be changed into another prime (66037306271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33018653385 + 33018653386.

It is an arithmetic number, because the mean of its divisors is an integer number (33018653386).

Almost surely, 2^66037306771 is an apocalyptic number.

66037306771 is a deficient number, since it is larger than the sum of its proper divisors (1).

66037306771 is an equidigital number, since it uses as much as digits as its factorization.

66037306771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 666792, while the sum is 46.

The spelling of 66037306771 in words is "sixty-six billion, thirty-seven million, three hundred six thousand, seven hundred seventy-one".