66737370367037 has 2 divisors, whose sum is σ = 66737370367038. Its totient is φ = 66737370367036.

The previous prime is 66737370367021. The next prime is 66737370367049. The reversal of 66737370367037 is 73076307373766.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50480257662916 + 16257112704121 = 7104946^2 + 4032011^2 .

It is a cyclic number.

It is not a de Polignac number, because 66737370367037 - 2⁴ = 66737370367021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66737370367337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33368685183518 + 33368685183519.

It is an arithmetic number, because the mean of its divisors is an integer number (33368685183519).

Almost surely, 2^{66737370367037} is an apocalyptic number.

It is an amenable number.

66737370367037 is a deficient number, since it is larger than the sum of its proper divisors (1).

66737370367037 is an equidigital number, since it uses as much as digits as its factorization.

66737370367037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294055272, while the sum is 65.

The spelling of 66737370367037 in words is "sixty-six trillion, seven hundred thirty-seven billion, three hundred seventy million, three hundred sixty-seven thousand, thirty-seven".