43155404455 has 16 divisors (see below), whose sum is σ = 53871544800. Its totient is φ = 33147587200.

The previous prime is 43155404441. The next prime is 43155404473. The reversal of 43155404455 is 55440455134.

It is not a de Polignac number, because 43155404455 - 2²⁹ = 42618533543 is a prime.

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, 805396 + ... + 857305.

It is an arithmetic number, because the mean of its divisors is an integer number (3366971550).

Almost surely, 2^43155404455 is an apocalyptic number.

43155404455 is a deficient number, since it is larger than the sum of its proper divisors (10716140345).

43155404455 is a wasteful number, since it uses less digits than its factorization.

43155404455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662914.

The product of its (nonzero) digits is 480000, while the sum is 40.

Adding to 43155404455 its reverse (55440455134), we get a palindrome (98595859589).

The spelling of 43155404455 in words is "forty-three billion, one hundred fifty-five million, four hundred four thousand, four hundred fifty-five".