133136665604551 has 16 divisors (see below), whose sum is σ = 152412306842880. Its totient is φ = 113925061108800.

The previous prime is 133136665604521. The next prime is 133136665604587. The reversal of 133136665604551 is 155406566631331.

It is a cyclic number.

It is not a de Polignac number, because 133136665604551 - 2¹¹ = 133136665602503 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133136665604492 and 133136665604501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133136665604521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239769900 + ... + 240324526.

It is an arithmetic number, because the mean of its divisors is an integer number (9525769177680).

Almost surely, 2^{133136665604551} is an apocalyptic number.

133136665604551 is a deficient number, since it is larger than the sum of its proper divisors (19275641238329).

133136665604551 is an equidigital number, since it uses as much as digits as its factorization.

133136665604551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612294.

The product of its (nonzero) digits is 17496000, while the sum is 55.

The spelling of 133136665604551 in words is "one hundred thirty-three trillion, one hundred thirty-six billion, six hundred sixty-five million, six hundred four thousand, five hundred fifty-one".