66434415050 has 12 divisors (see below), whose sum is σ = 123568012086. Its totient is φ = 26573766000.

The previous prime is 66434415049. The next prime is 66434415083. The reversal of 66434415050 is 5051443466.

It can be written as a sum of positive squares in 3 ways, for example, as 41918058121 + 24516356929 = 204739^2 + 156577^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66434414995 and 66434415013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 664344101 + ... + 664344200.

Almost surely, 2^66434415050 is an apocalyptic number.

66434415050 is a deficient number, since it is larger than the sum of its proper divisors (57133597036).

66434415050 is a wasteful number, since it uses less digits than its factorization.

66434415050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328688313 (or 1328688308 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 66434415050 in words is "sixty-six billion, four hundred thirty-four million, four hundred fifteen thousand, fifty".