135555581480 has 32 divisors (see below), whose sum is σ = 332727337440. Its totient is φ = 49292938560.

The previous prime is 135555581449. The next prime is 135555581501. The reversal of 135555581480 is 84185555531.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154039994 + ... + 154040873.

It is an arithmetic number, because the mean of its divisors is an integer number (10397729295).

Almost surely, 2^135555581480 is an apocalyptic number.

135555581480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135555581480 is an abundant number, since it is smaller than the sum of its proper divisors (197171755960).

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

135555581480 is a wasteful number, since it uses less digits than its factorization.

135555581480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308080889 (or 308080885 counting only the distinct ones).

The product of its (nonzero) digits is 2400000, while the sum is 50.

The spelling of 135555581480 in words is "one hundred thirty-five billion, five hundred fifty-five million, five hundred eighty-one thousand, four hundred eighty".