65220356 has 6 divisors (see below), whose sum is σ = 114135630. Its totient is φ = 32610176.

The previous prime is 65220319. The next prime is 65220377. The reversal of 65220356 is 65302256.

It is a happy number.

65220356 is digitally balanced in base 2, 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., 65060356 + 160000 = 8066^2 + 400^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8152541 + ... + 8152548.

It is an arithmetic number, because the mean of its divisors is an integer number (19022605).

Almost surely, 2^65220356 is an apocalyptic number.

It is an amenable number.

65220356 is a deficient number, since it is larger than the sum of its proper divisors (48915274).

65220356 is a wasteful number, since it uses less digits than its factorization.

65220356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16305093 (or 16305091 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 65220356 is about 8075.9120847122. The cubic root of 65220356 is about 402.5264177715.

The spelling of 65220356 in words is "sixty-five million, two hundred twenty thousand, three hundred fifty-six".