66183651829 has 2 divisors, whose sum is σ = 66183651830. Its totient is φ = 66183651828.

The previous prime is 66183651823. The next prime is 66183651857. The reversal of 66183651829 is 92815638166.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48706283025 + 17477368804 = 220695^2 + 132202^2 .

It is a cyclic number.

It is not a de Polignac number, because 66183651829 - 2⁷ = 66183651701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66183651829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66183651823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33091825914 + 33091825915.

It is an arithmetic number, because the mean of its divisors is an integer number (33091825915).

Almost surely, 2^66183651829 is an apocalyptic number.

It is an amenable number.

66183651829 is a deficient number, since it is larger than the sum of its proper divisors (1).

66183651829 is an equidigital number, since it uses as much as digits as its factorization.

66183651829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 55.

The spelling of 66183651829 in words is "sixty-six billion, one hundred eighty-three million, six hundred fifty-one thousand, eight hundred twenty-nine".