65551316 has 6 divisors (see below), whose sum is σ = 114714810. Its totient is φ = 32775656.

The previous prime is 65551289. The next prime is 65551319. The reversal of 65551316 is 61315556.

It can be written as a sum of positive squares in only one way, i.e., 52562500 + 12988816 = 7250^2 + 3604^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65551319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8193911 + ... + 8193918.

It is an arithmetic number, because the mean of its divisors is an integer number (19119135).

Almost surely, 2^65551316 is an apocalyptic number.

It is an amenable number.

65551316 is a deficient number, since it is larger than the sum of its proper divisors (49163494).

65551316 is a wasteful number, since it uses less digits than its factorization.

65551316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16387833 (or 16387831 counting only the distinct ones).

The product of its digits is 13500, while the sum is 32.

The square root of 65551316 is about 8096.3767204843. The cubic root of 65551316 is about 403.2061413175.

The spelling of 65551316 in words is "sixty-five million, five hundred fifty-one thousand, three hundred sixteen".