64668224241 has 12 divisors (see below), whose sum is σ = 93436082740. Its totient is φ = 43099953120.

The previous prime is 64668224239. The next prime is 64668224293. The reversal of 64668224241 is 14242286646.

It can be written as a sum of positive squares in 2 ways, for example, as 17970743025 + 46697481216 = 134055^2 + 216096^2 .

It is not a de Polignac number, because 64668224241 - 2¹ = 64668224239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64668224641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 982726 + ... + 1046463.

Almost surely, 2^64668224241 is an apocalyptic number.

It is an amenable number.

64668224241 is a deficient number, since it is larger than the sum of its proper divisors (28767858499).

64668224241 is a wasteful number, since it uses less digits than its factorization.

64668224241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032736 (or 2032733 counting only the distinct ones).

The product of its digits is 884736, while the sum is 45.

The spelling of 64668224241 in words is "sixty-four billion, six hundred sixty-eight million, two hundred twenty-four thousand, two hundred forty-one".