135555577800 has 48 divisors (see below), whose sum is σ = 420222293040. Its totient is φ = 36148153920.

The previous prime is 135555577799. The next prime is 135555577819. The reversal of 135555577800 is 8775555531.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112962382 + ... + 112963581.

It is an arithmetic number, because the mean of its divisors is an integer number (8754631105).

Almost surely, 2^135555577800 is an apocalyptic number.

135555577800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135555577800 is an abundant number, since it is smaller than the sum of its proper divisors (284666715240).

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

135555577800 is a wasteful number, since it uses less digits than its factorization.

135555577800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225925982 (or 225925973 counting only the distinct ones).

The product of its (nonzero) digits is 3675000, while the sum is 51.

The spelling of 135555577800 in words is "one hundred thirty-five billion, five hundred fifty-five million, five hundred seventy-seven thousand, eight hundred".