66474506533459 has 2 divisors, whose sum is σ = 66474506533460. Its totient is φ = 66474506533458.

The previous prime is 66474506533429. The next prime is 66474506533469. The reversal of 66474506533459 is 95433560547466.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66474506533459 - 2¹⁵ = 66474506500691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66474506533394 and 66474506533403.

It is not a weakly prime, because it can be changed into another prime (66474506533429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33237253266729 + 33237253266730.

It is an arithmetic number, because the mean of its divisors is an integer number (33237253266730).

Almost surely, 2^{66474506533459} is an apocalyptic number.

66474506533459 is a deficient number, since it is larger than the sum of its proper divisors (1).

66474506533459 is an equidigital number, since it uses as much as digits as its factorization.

66474506533459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776000, while the sum is 67.

The spelling of 66474506533459 in words is "sixty-six trillion, four hundred seventy-four billion, five hundred six million, five hundred thirty-three thousand, four hundred fifty-nine".