135235660424 has 8 divisors (see below), whose sum is σ = 253566863310. Its totient is φ = 67617830208.

The previous prime is 135235660361. The next prime is 135235660447. The reversal of 135235660424 is 424066532531.

It can be written as a sum of positive squares in only one way, i.e., 128437657924 + 6798002500 = 358382^2 + 82450^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8452228769 + ... + 8452228784.

Almost surely, 2^135235660424 is an apocalyptic number.

It is an amenable number.

135235660424 is a deficient number, since it is larger than the sum of its proper divisors (118331202886).

135235660424 is a wasteful number, since it uses less digits than its factorization.

135235660424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16904457559 (or 16904457555 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 135235660424 in words is "one hundred thirty-five billion, two hundred thirty-five million, six hundred sixty thousand, four hundred twenty-four".