66425630425 has 48 divisors (see below), whose sum is σ = 108733076352. Its totient is φ = 38972390400.

The previous prime is 66425630419. The next prime is 66425630441. The reversal of 66425630425 is 52403652466.

It is not a de Polignac number, because 66425630425 - 2³ = 66425630417 is a prime.

It is a Duffinian number.

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 47 ways as a sum of consecutive naturals, for example, 982182 + ... + 1047631.

It is an arithmetic number, because the mean of its divisors is an integer number (2265272424).

Almost surely, 2^66425630425 is an apocalyptic number.

It is an amenable number.

66425630425 is a deficient number, since it is larger than the sum of its proper divisors (42307445927).

66425630425 is a wasteful number, since it uses less digits than its factorization.

66425630425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029858 (or 2029853 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 43.

The spelling of 66425630425 in words is "sixty-six billion, four hundred twenty-five million, six hundred thirty thousand, four hundred twenty-five".