133565055512263 has 4 divisors (see below), whose sum is σ = 133968575317768. Its totient is φ = 133161535706760.

The previous prime is 133565055512249. The next prime is 133565055512341. The reversal of 133565055512263 is 362215550565331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133565055512263 - 2²¹ = 133565053415111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133565055512263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133565055512243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201759902256 + ... + 201759902917.

It is an arithmetic number, because the mean of its divisors is an integer number (33492143829442).

Almost surely, 2^{133565055512263} is an apocalyptic number.

133565055512263 is a deficient number, since it is larger than the sum of its proper divisors (403519805505).

133565055512263 is an equidigital number, since it uses as much as digits as its factorization.

133565055512263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403519805504.

The product of its (nonzero) digits is 12150000, while the sum is 52.

The spelling of 133565055512263 in words is "one hundred thirty-three trillion, five hundred sixty-five billion, fifty-five million, five hundred twelve thousand, two hundred sixty-three".