133661476826513 has 2 divisors, whose sum is σ = 133661476826514. Its totient is φ = 133661476826512.

The previous prime is 133661476826503. The next prime is 133661476826567. The reversal of 133661476826513 is 315628674166331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105431988288064 + 28229488538449 = 10268008^2 + 5313143^2 .

It is an emirp because it is prime and its reverse (315628674166331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133661476826513 - 2¹² = 133661476822417 is a prime.

It is not a weakly prime, because it can be changed into another prime (133661476826503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66830738413256 + 66830738413257.

It is an arithmetic number, because the mean of its divisors is an integer number (66830738413257).

Almost surely, 2^{133661476826513} is an apocalyptic number.

It is an amenable number.

133661476826513 is a deficient number, since it is larger than the sum of its proper divisors (1).

133661476826513 is an equidigital number, since it uses as much as digits as its factorization.

133661476826513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78382080, while the sum is 62.

The spelling of 133661476826513 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 thirteen".