135220230178 has 32 divisors (see below), whose sum is σ = 226025717760. Its totient is φ = 60143121360.

The previous prime is 135220230137. The next prime is 135220230191. The reversal of 135220230178 is 871032022531.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6113343 + ... + 6135421.

It is an arithmetic number, because the mean of its divisors is an integer number (7063303680).

Almost surely, 2^135220230178 is an apocalyptic number.

135220230178 is a deficient number, since it is larger than the sum of its proper divisors (90805487582).

135220230178 is a wasteful number, since it uses less digits than its factorization.

135220230178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28062.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 135220230178 in words is "one hundred thirty-five billion, two hundred twenty million, two hundred thirty thousand, one hundred seventy-eight".