65441656 has 40 divisors (see below), whose sum is σ = 143187120. Its totient is φ = 28038192.

The previous prime is 65441639. The next prime is 65441669. The reversal of 65441656 is 65614456.

It is a super-3 number, since 3×65441656³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 17505 + ... + 20911.

It is an arithmetic number, because the mean of its divisors is an integer number (3579678).

Almost surely, 2^65441656 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 65441656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71593560).

65441656 is an abundant number, since it is smaller than the sum of its proper divisors (77745464).

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

65441656 is an equidigital number, since it uses as much as digits as its factorization.

65441656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3441 (or 3416 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 65441656 is about 8089.6017207277. The cubic root of 65441656 is about 402.9811762723.

The spelling of 65441656 in words is "sixty-five million, four hundred forty-one thousand, six hundred fifty-six".