64143344401173 has 12 divisors (see below), whose sum is σ = 93920696064780. Its totient is φ = 42176445633216.

The previous prime is 64143344401159. The next prime is 64143344401177. The reversal of 64143344401173 is 37110444334146.

64143344401173 is a `hidden beast` number, since 6 + 4 + 1 + 4 + 3 + 34 + 440 + 1 + 173 = 666.

64143344401173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 16157771026929 + 47985573374244 = 4019673^2 + 6927162^2 .

It is not a de Polignac number, because 64143344401173 - 2¹⁷ = 64143344270101 is a prime.

It is a super-2 number, since 2×64143344401173² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64143344401177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48815329938 + ... + 48815331251.

It is an arithmetic number, because the mean of its divisors is an integer number (7826724672065).

Almost surely, 2^{64143344401173} is an apocalyptic number.

It is an amenable number.

64143344401173 is a deficient number, since it is larger than the sum of its proper divisors (29777351663607).

64143344401173 is a wasteful number, since it uses less digits than its factorization.

64143344401173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97630661268 (or 97630661265 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 45.

The spelling of 64143344401173 in words is "sixty-four trillion, one hundred forty-three billion, three hundred forty-four million, four hundred one thousand, one hundred seventy-three".