43161420361535 has 16 divisors (see below), whose sum is σ = 59193531734592. Its totient is φ = 29596039200000.

The previous prime is 43161420361469. The next prime is 43161420361573. The reversal of 43161420361535 is 53516302416134.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-43161420361535 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4661966 + ... + 10395035.

It is an arithmetic number, because the mean of its divisors is an integer number (3699595733412).

Almost surely, 2^{43161420361535} is an apocalyptic number.

43161420361535 is a deficient number, since it is larger than the sum of its proper divisors (16032111373057).

43161420361535 is a wasteful number, since it uses less digits than its factorization.

43161420361535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15138914.

The product of its (nonzero) digits is 777600, while the sum is 44.

Adding to 43161420361535 its reverse (53516302416134), we get a palindrome (96677722777669).

The spelling of 43161420361535 in words is "forty-three trillion, one hundred sixty-one billion, four hundred twenty million, three hundred sixty-one thousand, five hundred thirty-five".