405155405344 has 12 divisors (see below), whose sum is σ = 797649704334. Its totient is φ = 202577702656.

The previous prime is 405155405341. The next prime is 405155405359. The reversal of 405155405344 is 443504551504.

It can be written as a sum of positive squares in only one way, i.e., 405132250000 + 23155344 = 636500^2 + 4812^2 .

It is a junction number, because it is equal to n+sod(n) for n = 405155405297 and 405155405306.

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 as a sum of consecutive naturals, namely, 6330553177 + ... + 6330553240.

Almost surely, 2^405155405344 is an apocalyptic number.

It is an amenable number.

405155405344 is a deficient number, since it is larger than the sum of its proper divisors (392494298990).

405155405344 is a wasteful number, since it uses less digits than its factorization.

405155405344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12661106427 (or 12661106419 counting only the distinct ones).

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

Adding to 405155405344 its reverse (443504551504), we get a palindrome (848659956848).

The spelling of 405155405344 in words is "four hundred five billion, one hundred fifty-five million, four hundred five thousand, three hundred forty-four".