64216227069 has 12 divisors (see below), whose sum is σ = 92760046236. Its totient is φ = 42809307072.

The previous prime is 64216226959. The next prime is 64216227071. The reversal of 64216227069 is 96072261246.

It can be written as a sum of positive squares in 2 ways, for example, as 8159508900 + 56056718169 = 90330^2 + 236763^2 .

It is not a de Polignac number, because 64216227069 - 2¹⁹ = 64215702781 is a prime.

It is a super-2 number, since 2×64216227069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64216222069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183187 + ... + 402479.

It is an arithmetic number, because the mean of its divisors is an integer number (7730003853).

Almost surely, 2^64216227069 is an apocalyptic number.

It is an amenable number.

64216227069 is a deficient number, since it is larger than the sum of its proper divisors (28543819167).

64216227069 is a wasteful number, since it uses less digits than its factorization.

64216227069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251836 (or 251833 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 64216227069 in words is "sixty-four billion, two hundred sixteen million, two hundred twenty-seven thousand, sixty-nine".