135236665405154 has 16 divisors (see below), whose sum is σ = 203527613952000. Its totient is φ = 67394266814784.

The previous prime is 135236665405147. The next prime is 135236665405181. The reversal of 135236665405154 is 451504566632531.

It is a self number, because there is not a number n which added to its sum of digits gives 135236665405154.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32906354 + ... + 36787245.

It is an arithmetic number, because the mean of its divisors is an integer number (12720475872000).

Almost surely, 2^{135236665405154} is an apocalyptic number.

135236665405154 is a deficient number, since it is larger than the sum of its proper divisors (68290948546846).

135236665405154 is a wasteful number, since it uses less digits than its factorization.

135236665405154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69696817.

The product of its (nonzero) digits is 38880000, while the sum is 56.

The spelling of 135236665405154 in words is "one hundred thirty-five trillion, two hundred thirty-six billion, six hundred sixty-five million, four hundred five thousand, one hundred fifty-four".