16442663756145 has 32 divisors (see below), whose sum is σ = 29063212369920. Its totient is φ = 7871286671040.

The previous prime is 16442663756143. The next prime is 16442663756171. The reversal of 16442663756145 is 54165736624461.

It is not a de Polignac number, because 16442663756145 - 2¹ = 16442663756143 is a prime.

It is a super-3 number, since 3×16442663756145³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16442663756143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 630699039 + ... + 630725108.

It is an arithmetic number, because the mean of its divisors is an integer number (908225386560).

Almost surely, 2^{16442663756145} is an apocalyptic number.

16442663756145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16442663756145 is a deficient number, since it is larger than the sum of its proper divisors (12620548613775).

16442663756145 is a wasteful number, since it uses less digits than its factorization.

16442663756145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261424245.

The product of its digits is 87091200, while the sum is 60.

The spelling of 16442663756145 in words is "sixteen trillion, four hundred forty-two billion, six hundred sixty-three million, seven hundred fifty-six thousand, one hundred forty-five".