65559648 has 192 divisors, whose sum is σ = 220147200. Its totient is φ = 16934400.

The previous prime is 65559607. The next prime is 65559653. The reversal of 65559648 is 84695556.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 65559597 and 65559606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 362118 + ... + 362298.

It is an arithmetic number, because the mean of its divisors is an integer number (1146600).

Almost surely, 2^65559648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65559648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110073600).

65559648 is an abundant number, since it is smaller than the sum of its proper divisors (154587552).

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

65559648 is a wasteful number, since it uses less digits than its factorization.

65559648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 204 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 48.

The square root of 65559648 is about 8096.8912552905. The cubic root of 65559648 is about 403.2232239709.

The spelling of 65559648 in words is "sixty-five million, five hundred fifty-nine thousand, six hundred forty-eight".