133661476826503 has 2 divisors, whose sum is σ = 133661476826504. Its totient is φ = 133661476826502.

The previous prime is 133661476826473. The next prime is 133661476826513. The reversal of 133661476826503 is 305628674166331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133661476826503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133661476826513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66830738413251 + 66830738413252.

It is an arithmetic number, because the mean of its divisors is an integer number (66830738413252).

Almost surely, 2^{133661476826503} is an apocalyptic number.

133661476826503 is a deficient number, since it is larger than the sum of its proper divisors (1).

133661476826503 is an equidigital number, since it uses as much as digits as its factorization.

133661476826503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78382080, while the sum is 61.

The spelling of 133661476826503 in words is "one hundred thirty-three trillion, six hundred sixty-one billion, four hundred seventy-six million, eight hundred twenty-six thousand, five hundred three".