171439052655 has 16 divisors (see below), whose sum is σ = 295402675680. Its totient is φ = 84400764288.

The previous prime is 171439052641. The next prime is 171439052789. The reversal of 171439052655 is 556250934171.

It is not a de Polignac number, because 171439052655 - 2¹³ = 171439044463 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 439587120 + ... + 439587509.

It is an arithmetic number, because the mean of its divisors is an integer number (18462667230).

Almost surely, 2^171439052655 is an apocalyptic number.

171439052655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

171439052655 is a deficient number, since it is larger than the sum of its proper divisors (123963623025).

171439052655 is a wasteful number, since it uses less digits than its factorization.

171439052655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879174650.

The product of its (nonzero) digits is 1134000, while the sum is 48.

The spelling of 171439052655 in words is "one hundred seventy-one billion, four hundred thirty-nine million, fifty-two thousand, six hundred fifty-five".