16466631440255 has 32 divisors (see below), whose sum is σ = 20891311257600. Its totient is φ = 12425255062272.

The previous prime is 16466631440227. The next prime is 16466631440299. The reversal of 16466631440255 is 55204413666461.

It is a cyclic number.

It is not a de Polignac number, because 16466631440255 - 2¹⁸ = 16466631178111 is a prime.

It is a super-2 number, since 2×16466631440255² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16466631440197 and 16466631440206.

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, 24617642 + ... + 25277688.

It is an arithmetic number, because the mean of its divisors is an integer number (652853476800).

Almost surely, 2^{16466631440255} is an apocalyptic number.

16466631440255 is a deficient number, since it is larger than the sum of its proper divisors (4424679817345).

16466631440255 is a wasteful number, since it uses less digits than its factorization.

16466631440255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661223.

The product of its (nonzero) digits is 12441600, while the sum is 53.

The spelling of 16466631440255 in words is "sixteen trillion, four hundred sixty-six billion, six hundred thirty-one million, four hundred forty thousand, two hundred fifty-five".