64441712055 has 64 divisors (see below), whose sum is σ = 122443923456. Its totient is φ = 28319760000.

The previous prime is 64441712011. The next prime is 64441712057. The reversal of 64441712055 is 55021714446.

It is not a de Polignac number, because 64441712055 - 2⁸ = 64441711799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64441712057) 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 63 ways as a sum of consecutive naturals, for example, 425950 + ... + 557060.

It is an arithmetic number, because the mean of its divisors is an integer number (1913186304).

Almost surely, 2^64441712055 is an apocalyptic number.

64441712055 is a deficient number, since it is larger than the sum of its proper divisors (58002211401).

64441712055 is a wasteful number, since it uses less digits than its factorization.

64441712055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131308.

The product of its (nonzero) digits is 134400, while the sum is 39.

The spelling of 64441712055 in words is "sixty-four billion, four hundred forty-one million, seven hundred twelve thousand, fifty-five".