165611006655055 has 8 divisors (see below), whose sum is σ = 214020377831232. Its totient is φ = 122297358760608.

The previous prime is 165611006655007. The next prime is 165611006655109. The reversal of 165611006655055 is 550556600116561.

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

It is a cyclic number.

It is not a de Polignac number, because 165611006655055 - 2⁷ = 165611006654927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165611006654993 and 165611006655011.

It is a congruent 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, 1273930820359 + ... + 1273930820488.

It is an arithmetic number, because the mean of its divisors is an integer number (26752547228904).

Almost surely, 2^{165611006655055} is an apocalyptic number.

165611006655055 is a deficient number, since it is larger than the sum of its proper divisors (48409371176177).

165611006655055 is a wasteful number, since it uses less digits than its factorization.

165611006655055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2547861640865.

The product of its (nonzero) digits is 4050000, while the sum is 52.

The spelling of 165611006655055 in words is "one hundred sixty-five trillion, six hundred eleven billion, six million, six hundred fifty-five thousand, fifty-five".