66432000829 has 2 divisors, whose sum is σ = 66432000830. Its totient is φ = 66432000828.

The previous prime is 66432000809. The next prime is 66432000853. The reversal of 66432000829 is 92800023466.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37528600729 + 28903400100 = 193723^2 + 170010^2 .

It is a cyclic number.

It is not a de Polignac number, because 66432000829 - 2¹¹ = 66431998781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66432000791 and 66432000800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66432000809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33216000414 + 33216000415.

It is an arithmetic number, because the mean of its divisors is an integer number (33216000415).

Almost surely, 2^66432000829 is an apocalyptic number.

It is an amenable number.

66432000829 is a deficient number, since it is larger than the sum of its proper divisors (1).

66432000829 is an equidigital number, since it uses as much as digits as its factorization.

66432000829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 66432000829 in words is "sixty-six billion, four hundred thirty-two million, eight hundred twenty-nine", and thus it is an aban number.