16466631440256 has 96 divisors (see below), whose sum is σ = 49139426863800. Its totient is φ = 5488877136384.

The previous prime is 16466631440227. The next prime is 16466631440299. The reversal of 16466631440256 is 65204413666461.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×16466631440256² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 264671691 + ... + 264733898.

Almost surely, 2^{16466631440256} is an apocalyptic number.

16466631440256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16466631440256 is an abundant number, since it is smaller than the sum of its proper divisors (32672795423544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16466631440256 is an frugal number, since it uses more digits than its factorization.

16466631440256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529405618 (or 529405594 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 54.

The spelling of 16466631440256 in words is "sixteen trillion, four hundred sixty-six billion, six hundred thirty-one million, four hundred forty thousand, two hundred fifty-six".