405155405343 has 16 divisors (see below), whose sum is σ = 581824174176. Its totient is φ = 249299589120.

The previous prime is 405155405341. The next prime is 405155405359. The reversal of 405155405343 is 343504551504.

It is a happy number.

It is not a de Polignac number, because 405155405343 - 2¹ = 405155405341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405155405341) 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, 188238 + ... + 919643.

It is an arithmetic number, because the mean of its divisors is an integer number (36364010886).

Almost surely, 2^405155405343 is an apocalyptic number.

405155405343 is a deficient number, since it is larger than the sum of its proper divisors (176668768833).

405155405343 is a wasteful number, since it uses less digits than its factorization.

405155405343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117274.

The product of its (nonzero) digits is 360000, while the sum is 39.

Adding to 405155405343 its reverse (343504551504), we get a palindrome (748659956847).

The spelling of 405155405343 in words is "four hundred five billion, one hundred fifty-five million, four hundred five thousand, three hundred forty-three".