133126236216605 has 16 divisors (see below), whose sum is σ = 169151083937280. Its totient is φ = 100234770461952.

The previous prime is 133126236216569. The next prime is 133126236216691. The reversal of 133126236216605 is 506612632621331.

It is a cyclic number.

It is not a de Polignac number, because 133126236216605 - 2⁶ = 133126236216541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133126236216605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5452565 + ... + 17204154.

It is an arithmetic number, because the mean of its divisors is an integer number (10571942746080).

Almost surely, 2^{133126236216605} is an apocalyptic number.

It is an amenable number.

133126236216605 is a deficient number, since it is larger than the sum of its proper divisors (36024847720675).

133126236216605 is a wasteful number, since it uses less digits than its factorization.

133126236216605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22725868.

The product of its (nonzero) digits is 1399680, while the sum is 47.

Adding to 133126236216605 its reverse (506612632621331), we get a palindrome (639738868837936).

The spelling of 133126236216605 in words is "one hundred thirty-three trillion, one hundred twenty-six billion, two hundred thirty-six million, two hundred sixteen thousand, six hundred five".