405155405306 has 8 divisors (see below), whose sum is σ = 611811854100. Its totient is φ = 201218120608.

The previous prime is 405155405251. The next prime is 405155405341. The reversal of 405155405306 is 603504551504.

It can be written as a sum of positive squares in 2 ways, for example, as 404443849681 + 711555625 = 635959^2 + 26675^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 405155405306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 679790651 + ... + 679791246.

Almost surely, 2^405155405306 is an apocalyptic number.

405155405306 is a deficient number, since it is larger than the sum of its proper divisors (206656448794).

405155405306 is a wasteful number, since it uses less digits than its factorization.

405155405306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359582048.

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 405155405306 in words is "four hundred five billion, one hundred fifty-five million, four hundred five thousand, three hundred six".