400011330455 has 64 divisors (see below), whose sum is σ = 549204295680. Its totient is φ = 277031145600.

The previous prime is 400011330449. The next prime is 400011330469. The reversal of 400011330455 is 554033110004.

It is not a de Polignac number, because 400011330455 - 2¹⁴ = 400011314071 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 (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 183574556 + ... + 183576734.

It is an arithmetic number, because the mean of its divisors is an integer number (8581317120).

Almost surely, 2^400011330455 is an apocalyptic number.

400011330455 is a deficient number, since it is larger than the sum of its proper divisors (149192965225).

400011330455 is a wasteful number, since it uses less digits than its factorization.

400011330455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3900.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 400011330455 its reverse (554033110004), we get a palindrome (954044440459).

The spelling of 400011330455 in words is "four hundred billion, eleven million, three hundred thirty thousand, four hundred fifty-five".