135366705514878 has 16 divisors (see below), whose sum is σ = 270733532908176. Its totient is φ = 45122214858560.

The previous prime is 135366705514871. The next prime is 135366705514883. The reversal of 135366705514878 is 878415507663531.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135366705514871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16252738 + ... + 23127578.

It is an arithmetic number, because the mean of its divisors is an integer number (16920845806761).

Almost surely, 2^{135366705514878} is an apocalyptic number.

135366705514878 is an abundant number, since it is smaller than the sum of its proper divisors (135366827393298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135366705514878 is a wasteful number, since it uses less digits than its factorization.

135366705514878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10156539.

The product of its (nonzero) digits is 508032000, while the sum is 69.

The spelling of 135366705514878 in words is "one hundred thirty-five trillion, three hundred sixty-six billion, seven hundred five million, five hundred fourteen thousand, eight hundred seventy-eight".