135442565545 has 16 divisors (see below), whose sum is σ = 188101071360. Its totient is φ = 91699268544.

The previous prime is 135442565521. The next prime is 135442565551. The reversal of 135442565545 is 545565244531.

It is a cyclic number.

It is not a de Polignac number, because 135442565545 - 2¹⁵ = 135442532777 is a prime.

It is a super-2 number, since 2×135442565545² (a number of 23 digits) contains 22 as substring.

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, 24489562 + ... + 24495091.

It is an arithmetic number, because the mean of its divisors is an integer number (11756316960).

Almost surely, 2^135442565545 is an apocalyptic number.

It is an amenable number.

135442565545 is a deficient number, since it is larger than the sum of its proper divisors (52658505815).

135442565545 is an equidigital number, since it uses as much as digits as its factorization.

135442565545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48984744.

The product of its digits is 7200000, while the sum is 49.

The spelling of 135442565545 in words is "one hundred thirty-five billion, four hundred forty-two million, five hundred sixty-five thousand, five hundred forty-five".