65402425648 has 40 divisors (see below), whose sum is σ = 145452114080. Its totient is φ = 27907200000.

The previous prime is 65402425631. The next prime is 65402425691. The reversal of 65402425648 is 84652420456.

It is a junction number, because it is equal to n+sod(n) for n = 65402425598 and 65402425607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1249353 + ... + 1300648.

It is an arithmetic number, because the mean of its divisors is an integer number (3636302852).

Almost surely, 2^65402425648 is an apocalyptic number.

It is an amenable number.

65402425648 is an abundant number, since it is smaller than the sum of its proper divisors (80049688432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65402425648 is a wasteful number, since it uses less digits than its factorization.

65402425648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550245 (or 2550239 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 46.

The spelling of 65402425648 in words is "sixty-five billion, four hundred two million, four hundred twenty-five thousand, six hundred forty-eight".