135555204426 has 64 divisors (see below), whose sum is σ = 285555473280. Its totient is φ = 42836693760.

The previous prime is 135555204409. The next prime is 135555204479. The reversal of 135555204426 is 624402555531.

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, 6219540 + ... + 6241296.

It is an arithmetic number, because the mean of its divisors is an integer number (4461804270).

Almost surely, 2^135555204426 is an apocalyptic number.

135555204426 is an abundant number, since it is smaller than the sum of its proper divisors (150000268854).

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

135555204426 is a wasteful number, since it uses less digits than its factorization.

135555204426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22439.

The product of its (nonzero) digits is 720000, while the sum is 42.

Adding to 135555204426 its reverse (624402555531), we get a palindrome (759957759957).

The spelling of 135555204426 in words is "one hundred thirty-five billion, five hundred fifty-five million, two hundred four thousand, four hundred twenty-six".