172158606353 has 2 divisors, whose sum is σ = 172158606354. Its totient is φ = 172158606352.

The previous prime is 172158606349. The next prime is 172158606407. The reversal of 172158606353 is 353606851271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100199470849 + 71959135504 = 316543^2 + 268252^2 .

It is a cyclic number.

It is not a de Polignac number, because 172158606353 - 2² = 172158606349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172158606298 and 172158606307.

It is not a weakly prime, because it can be changed into another prime (172158606553) 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 as a sum of consecutive naturals, namely, 86079303176 + 86079303177.

It is an arithmetic number, because the mean of its divisors is an integer number (86079303177).

Almost surely, 2^172158606353 is an apocalyptic number.

It is an amenable number.

172158606353 is a deficient number, since it is larger than the sum of its proper divisors (1).

172158606353 is an equidigital number, since it uses as much as digits as its factorization.

172158606353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 907200, while the sum is 47.

Adding to 172158606353 its sum of digits (47), we get a square (172158606400 = 414920²).

The spelling of 172158606353 in words is "one hundred seventy-two billion, one hundred fifty-eight million, six hundred six thousand, three hundred fifty-three".