135665261645302 has 4 divisors (see below), whose sum is σ = 203497892467956. Its totient is φ = 67832630822650.

The previous prime is 135665261645119. The next prime is 135665261645311. The reversal of 135665261645302 is 203546162566531.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33916315411324 + ... + 33916315411327.

It is an arithmetic number, because the mean of its divisors is an integer number (50874473116989).

Almost surely, 2^{135665261645302} is an apocalyptic number.

135665261645302 is a deficient number, since it is larger than the sum of its proper divisors (67832630822654).

135665261645302 is an equidigital number, since it uses as much as digits as its factorization.

135665261645302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67832630822653.

The product of its (nonzero) digits is 23328000, while the sum is 55.

The spelling of 135665261645302 in words is "one hundred thirty-five trillion, six hundred sixty-five billion, two hundred sixty-one million, six hundred forty-five thousand, three hundred two".