64224706568068 has 12 divisors (see below), whose sum is σ = 112396806000220. Its totient is φ = 32111333425152.

The previous prime is 64224706568053. The next prime is 64224706568069. The reversal of 64224706568068 is 86086560742246.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39542867809344 + 24681838758724 = 6288312^2 + 4968082^2 .

It is not an unprimeable number, because it can be changed into a prime (64224706568069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254823021 + ... + 255074932.

Almost surely, 2^{64224706568068} is an apocalyptic number.

It is an amenable number.

64224706568068 is a deficient number, since it is larger than the sum of its proper divisors (48172099432152).

64224706568068 is a wasteful number, since it uses less digits than its factorization.

64224706568068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509929446 (or 509929444 counting only the distinct ones).

The product of its (nonzero) digits is 185794560, while the sum is 64.

The spelling of 64224706568068 in words is "sixty-four trillion, two hundred twenty-four billion, seven hundred six million, five hundred sixty-eight thousand, sixty-eight".