21201676133593 has 2 divisors, whose sum is σ = 21201676133594. Its totient is φ = 21201676133592.

The previous prime is 21201676133587. The next prime is 21201676133611. The reversal of 21201676133593 is 39533167610212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13832470955209 + 7369205178384 = 3719203^2 + 2714628^2 .

It is a cyclic number.

It is not a de Polignac number, because 21201676133593 - 2²¹ = 21201674036441 is a prime.

It is a super-3 number, since 3×21201676133593³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (21201676103593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10600838066796 + 10600838066797.

It is an arithmetic number, because the mean of its divisors is an integer number (10600838066797).

Almost surely, 2^{21201676133593} is an apocalyptic number.

It is an amenable number.

21201676133593 is a deficient number, since it is larger than the sum of its proper divisors (1).

21201676133593 is an equidigital number, since it uses as much as digits as its factorization.

21201676133593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1224720, while the sum is 49.

The spelling of 21201676133593 in words is "twenty-one trillion, two hundred one billion, six hundred seventy-six million, one hundred thirty-three thousand, five hundred ninety-three".