16442066442653 has 2 divisors, whose sum is σ = 16442066442654. Its totient is φ = 16442066442652.

The previous prime is 16442066442631. The next prime is 16442066442673. The reversal of 16442066442653 is 35624466024461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15790426796089 + 651639646564 = 3973717^2 + 807242^2 .

It is a cyclic number.

It is not a de Polignac number, because 16442066442653 - 2⁸ = 16442066442397 is a prime.

It is a super-3 number, since 3×16442066442653³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16442066442595 and 16442066442604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16442066442623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8221033221326 + 8221033221327.

It is an arithmetic number, because the mean of its divisors is an integer number (8221033221327).

Almost surely, 2^{16442066442653} is an apocalyptic number.

It is an amenable number.

16442066442653 is a deficient number, since it is larger than the sum of its proper divisors (1).

16442066442653 is an equidigital number, since it uses as much as digits as its factorization.

16442066442653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19906560, while the sum is 53.

The spelling of 16442066442653 in words is "sixteen trillion, four hundred forty-two billion, sixty-six million, four hundred forty-two thousand, six hundred fifty-three".