135538066807548 has 24 divisors (see below), whose sum is σ = 316255711244928. Its totient is φ = 45179323884336.

The previous prime is 135538066807543. The next prime is 135538066807609. The reversal of 135538066807548 is 845708660835531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135538066807543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19301515 + ... + 25369757.

It is an arithmetic number, because the mean of its divisors is an integer number (13177321301872).

Almost surely, 2^{135538066807548} is an apocalyptic number.

It is an amenable number.

135538066807548 is an abundant number, since it is smaller than the sum of its proper divisors (180717644437380).

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

135538066807548 is a wasteful number, since it uses less digits than its factorization.

135538066807548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7929553 (or 7929551 counting only the distinct ones).

The product of its (nonzero) digits is 580608000, while the sum is 69.

The spelling of 135538066807548 in words is "one hundred thirty-five trillion, five hundred thirty-eight billion, sixty-six million, eight hundred seven thousand, five hundred forty-eight".