135165574556601 has 8 divisors (see below), whose sum is σ = 180326965708704. Its totient is φ = 90057283221120.

The previous prime is 135165574556581. The next prime is 135165574556689. The reversal of 135165574556601 is 106655475561531.

It is a happy number.

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

It is not a de Polignac number, because 135165574556601 - 2¹⁷ = 135165574425529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135165574555601) 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, 13274948215 + ... + 13274958396.

It is an arithmetic number, because the mean of its divisors is an integer number (22540870713588).

Almost surely, 2^{135165574556601} is an apocalyptic number.

It is an amenable number.

135165574556601 is a deficient number, since it is larger than the sum of its proper divisors (45161391152103).

135165574556601 is a wasteful number, since it uses less digits than its factorization.

135165574556601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26549908311.

The product of its (nonzero) digits is 56700000, while the sum is 60.

The spelling of 135165574556601 in words is "one hundred thirty-five trillion, one hundred sixty-five billion, five hundred seventy-four million, five hundred fifty-six thousand, six hundred one".