405511113255 has 16 divisors (see below), whose sum is σ = 648976942080. Its totient is φ = 216219540128.

The previous prime is 405511113239. The next prime is 405511113349. The reversal of 405511113255 is 552311115504.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 405511113255 - 2⁴ = 405511113239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3252627 + ... + 3374996.

It is an arithmetic number, because the mean of its divisors is an integer number (40561058880).

Almost surely, 2^405511113255 is an apocalyptic number.

405511113255 is a deficient number, since it is larger than the sum of its proper divisors (243465828825).

405511113255 is a wasteful number, since it uses less digits than its factorization.

405511113255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6631710.

The product of its (nonzero) digits is 15000, while the sum is 33.

Adding to 405511113255 its reverse (552311115504), we get a palindrome (957822228759).

The spelling of 405511113255 in words is "four hundred five billion, five hundred eleven million, one hundred thirteen thousand, two hundred fifty-five".