135666214240305 has 32 divisors (see below), whose sum is σ = 248290893692928. Its totient is φ = 61964958168000.

The previous prime is 135666214240289. The next prime is 135666214240379. The reversal of 135666214240305 is 503042412666531.

It is not a de Polignac number, because 135666214240305 - 2⁴ = 135666214240289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 561155941 + ... + 561397650.

It is an arithmetic number, because the mean of its divisors is an integer number (7759090427904).

Almost surely, 2^{135666214240305} is an apocalyptic number.

135666214240305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135666214240305 is a deficient number, since it is larger than the sum of its proper divisors (112624679452623).

135666214240305 is a wasteful number, since it uses less digits than its factorization.

135666214240305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122554757.

The product of its (nonzero) digits is 3110400, while the sum is 48.

The spelling of 135666214240305 in words is "one hundred thirty-five trillion, six hundred sixty-six billion, two hundred fourteen million, two hundred forty thousand, three hundred five".