171375640355 has 8 divisors (see below), whose sum is σ = 216474493200. Its totient is φ = 129884695776.

The previous prime is 171375640327. The next prime is 171375640361. The reversal of 171375640355 is 553046573171.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-171375640355 is a prime.

It is a super-2 number, since 2×171375640355² (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 7 ways as a sum of consecutive naturals, for example, 901976960 + ... + 901977149.

It is an arithmetic number, because the mean of its divisors is an integer number (27059311650).

Almost surely, 2^171375640355 is an apocalyptic number.

171375640355 is a deficient number, since it is larger than the sum of its proper divisors (45098852845).

171375640355 is a wasteful number, since it uses less digits than its factorization.

171375640355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803954133.

The product of its (nonzero) digits is 1323000, while the sum is 47.

The spelling of 171375640355 in words is "one hundred seventy-one billion, three hundred seventy-five million, six hundred forty thousand, three hundred fifty-five".