65554656 has 48 divisors (see below), whose sum is σ = 173810448. Its totient is φ = 21632000.

The previous prime is 65554603. The next prime is 65554667. The reversal of 65554656 is 65645556.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6316 + ... + 13076.

It is an arithmetic number, because the mean of its divisors is an integer number (3621051).

Almost surely, 2^65554656 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 65554656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86905224).

65554656 is an abundant number, since it is smaller than the sum of its proper divisors (108255792).

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

65554656 is a wasteful number, since it uses less digits than its factorization.

65554656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6875 (or 6867 counting only the distinct ones).

The product of its digits is 540000, while the sum is 42.

The square root of 65554656 is about 8096.5829829626. The cubic root of 65554656 is about 403.2129893145.

It can be divided in two parts, 6555 and 4656, that added together give a palindrome (11211).

The spelling of 65554656 in words is "sixty-five million, five hundred fifty-four thousand, six hundred fifty-six".