65546564 has 6 divisors (see below), whose sum is σ = 114706494. Its totient is φ = 32773280.

The previous prime is 65546563. The next prime is 65546587. The reversal of 65546564 is 46564556.

65546564 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 62094400 + 3452164 = 7880^2 + 1858^2 .

It is a super-3 number, since 3×65546564³ (a number of 24 digits) contains 333 as substring.

65546564 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (65546563) by changing a digit.

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 as a sum of consecutive naturals, namely, 8193317 + ... + 8193324.

It is an arithmetic number, because the mean of its divisors is an integer number (19117749).

Almost surely, 2^65546564 is an apocalyptic number.

It is an amenable number.

65546564 is a deficient number, since it is larger than the sum of its proper divisors (49159930).

65546564 is a wasteful number, since it uses less digits than its factorization.

65546564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16386645 (or 16386643 counting only the distinct ones).

The product of its digits is 432000, while the sum is 41.

The square root of 65546564 is about 8096.0832505601. The cubic root of 65546564 is about 403.1963978981.

The spelling of 65546564 in words is "sixty-five million, five hundred forty-six thousand, five hundred sixty-four".