171240511055 has 8 divisors (see below), whose sum is σ = 205579190400. Its totient is φ = 136932024096.

The previous prime is 171240511049. The next prime is 171240511093. The reversal of 171240511055 is 550115042171.

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 171240511055 - 2⁸ = 171240510799 is a prime.

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, 7535615 + ... + 7558304.

It is an arithmetic number, because the mean of its divisors is an integer number (25697398800).

Almost surely, 2^171240511055 is an apocalyptic number.

171240511055 is a deficient number, since it is larger than the sum of its proper divisors (34338679345).

171240511055 is a wasteful number, since it uses less digits than its factorization.

171240511055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15096193.

The product of its (nonzero) digits is 7000, while the sum is 32.

The spelling of 171240511055 in words is "one hundred seventy-one billion, two hundred forty million, five hundred eleven thousand, fifty-five".