1406644342216 has 16 divisors (see below), whose sum is σ = 2638278040140. Its totient is φ = 703103531520.

The previous prime is 1406644342189. The next prime is 1406644342217. The reversal of 1406644342216 is 6122434466041.

It can be written as a sum of positive squares in 2 ways, for example, as 988493292900 + 418151049316 = 994230^2 + 646646^2 .

It is a super-3 number, since 3×1406644342216³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1406644342217) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 27302605 + ... + 27354076.

Almost surely, 2^{1406644342216} is an apocalyptic number.

It is an amenable number.

1406644342216 is a deficient number, since it is larger than the sum of its proper divisors (1231633697924).

1406644342216 is a wasteful number, since it uses less digits than its factorization.

1406644342216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54659904 (or 54659900 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 43.

The spelling of 1406644342216 in words is "one trillion, four hundred six billion, six hundred forty-four million, three hundred forty-two thousand, two hundred sixteen".