64430342160005 has 16 divisors (see below), whose sum is σ = 77446557378864. Its totient is φ = 51457559162880.

The previous prime is 64430342159947. The next prime is 64430342160007. The reversal of 64430342160005 is 50006124303446.

It can be written as a sum of positive squares in 8 ways, for example, as 416533415236 + 64013808744769 = 645394^2 + 8000863^2 .

It is not a de Polignac number, because 64430342160005 - 2¹⁰ = 64430342158981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64430342160007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7202237 + ... + 13443693.

It is an arithmetic number, because the mean of its divisors is an integer number (4840409836179).

Almost surely, 2^{64430342160005} is an apocalyptic number.

It is an amenable number.

64430342160005 is a deficient number, since it is larger than the sum of its proper divisors (13016215218859).

64430342160005 is a wasteful number, since it uses less digits than its factorization.

64430342160005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6244936.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 64430342160005 in words is "sixty-four trillion, four hundred thirty billion, three hundred forty-two million, one hundred sixty thousand, five".