66737000340427 has 2 divisors, whose sum is σ = 66737000340428. Its totient is φ = 66737000340426.

The previous prime is 66737000340377. The next prime is 66737000340431. The reversal of 66737000340427 is 72404300073766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66737000340427 - 2³¹ = 66734852856779 is a prime.

It is not a weakly prime, because it can be changed into another prime (66737000340467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33368500170213 + 33368500170214.

It is an arithmetic number, because the mean of its divisors is an integer number (33368500170214).

Almost surely, 2^{66737000340427} is an apocalyptic number.

66737000340427 is a deficient number, since it is larger than the sum of its proper divisors (1).

66737000340427 is an equidigital number, since it uses as much as digits as its factorization.

66737000340427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3556224, while the sum is 49.

The spelling of 66737000340427 in words is "sixty-six trillion, seven hundred thirty-seven billion, three hundred forty thousand, four hundred twenty-seven".