405994208255 has 32 divisors (see below), whose sum is σ = 495233319168. Its totient is φ = 319472524800.

The previous prime is 405994208189. The next prime is 405994208273. The reversal of 405994208255 is 552802499504.

It is not a de Polignac number, because 405994208255 - 2⁸ = 405994207999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 405994208197 and 405994208206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130083095 + ... + 130086215.

It is an arithmetic number, because the mean of its divisors is an integer number (15476041224).

Almost surely, 2^405994208255 is an apocalyptic number.

405994208255 is a deficient number, since it is larger than the sum of its proper divisors (89239110913).

405994208255 is a wasteful number, since it uses less digits than its factorization.

405994208255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4487.

The product of its (nonzero) digits is 5184000, while the sum is 53.

The spelling of 405994208255 in words is "four hundred five billion, nine hundred ninety-four million, two hundred eight thousand, two hundred fifty-five".