135657543523505 has 8 divisors (see below), whose sum is σ = 164031716749824. Its totient is φ = 107697591804400.

The previous prime is 135657543523501. The next prime is 135657543523519. The reversal of 135657543523505 is 505325345756531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135657543523505 - 2² = 135657543523501 is a prime.

It is a super-2 number, since 2×135657543523505² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135657543523501) 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, 103555376081 + ... + 103555377390.

It is an arithmetic number, because the mean of its divisors is an integer number (20503964593728).

Almost surely, 2^{135657543523505} is an apocalyptic number.

It is an amenable number.

135657543523505 is a deficient number, since it is larger than the sum of its proper divisors (28374173226319).

135657543523505 is a wasteful number, since it uses less digits than its factorization.

135657543523505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207110753607.

The product of its (nonzero) digits is 141750000, while the sum is 59.

The spelling of 135657543523505 in words is "one hundred thirty-five trillion, six hundred fifty-seven billion, five hundred forty-three million, five hundred twenty-three thousand, five hundred five".