43204120141645 has 16 divisors (see below), whose sum is σ = 53111799422640. Its totient is φ = 33718800371200.

The previous prime is 43204120141597. The next prime is 43204120141669. The reversal of 43204120141645 is 54614102140234.

It can be written as a sum of positive squares in 8 ways, for example, as 18238528294281 + 24965591847364 = 4270659^2 + 4996558^2 .

It is not a de Polignac number, because 43204120141645 - 2⁷ = 43204120141517 is a prime.

It is a super-3 number, since 3×43204120141645³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15075 + ... + 9295615.

It is an arithmetic number, because the mean of its divisors is an integer number (3319487463915).

Almost surely, 2^{43204120141645} is an apocalyptic number.

It is an amenable number.

43204120141645 is a deficient number, since it is larger than the sum of its proper divisors (9907679280995).

43204120141645 is a wasteful number, since it uses less digits than its factorization.

43204120141645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9303296.

The product of its (nonzero) digits is 92160, while the sum is 37.

Adding to 43204120141645 its reverse (54614102140234), we get a palindrome (97818222281879).

The spelling of 43204120141645 in words is "forty-three trillion, two hundred four billion, one hundred twenty million, one hundred forty-one thousand, six hundred forty-five".