65545216 has 99 divisors (see below), whose sum is σ = 150554803. Its totient is φ = 28497920.

The previous prime is 65545199. The next prime is 65545219. The reversal of 65545216 is 61254556.

The square root of 65545216 is 8096.

It is a perfect power (a square), and thus also a powerful number.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

Its product of digits (36000) is a multiple of the sum of its prime divisors (36).

It is not an unprimeable number, because it can be changed into a prime (65545219) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2849781 + ... + 2849803.

Almost surely, 2^65545216 is an apocalyptic number.

65545216 is the 8096-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65545216

65545216 is an abundant number, since it is smaller than the sum of its proper divisors (85009587).

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

65545216 is a wasteful number, since it uses less digits than its factorization.

65545216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 36 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The cubic root of 65545216 is about 403.1936338963.

The spelling of 65545216 in words is "sixty-five million, five hundred forty-five thousand, two hundred sixteen".