135555667890 has 32 divisors (see below), whose sum is σ = 325996232256. Its totient is φ = 36074552640.

The previous prime is 135555667873. The next prime is 135555667927. The reversal of 135555667890 is 98766555531.

It is a happy number.

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, 4586617 + ... + 4616076.

It is an arithmetic number, because the mean of its divisors is an integer number (10187382258).

Almost surely, 2^135555667890 is an apocalyptic number.

135555667890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135555667890 is an abundant number, since it is smaller than the sum of its proper divisors (190440564366).

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

135555667890 is a wasteful number, since it uses less digits than its factorization.

135555667890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9203194.

The product of its (nonzero) digits is 34020000, while the sum is 60.

The spelling of 135555667890 in words is "one hundred thirty-five billion, five hundred fifty-five million, six hundred sixty-seven thousand, eight hundred ninety".