171078110788959 has 80 divisors (see below), whose sum is σ = 279801687691680. Its totient is φ = 103309552189440.

The previous prime is 171078110788943. The next prime is 171078110788997. The reversal of 171078110788959 is 959887011870171.

It is not a de Polignac number, because 171078110788959 - 2⁴ = 171078110788943 is a prime.

It is a super-2 number, since 2×171078110788959² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171078110788159) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 296394189 + ... + 296970825.

It is an arithmetic number, because the mean of its divisors is an integer number (3497521096146).

Almost surely, 2^{171078110788959} is an apocalyptic number.

171078110788959 is a deficient number, since it is larger than the sum of its proper divisors (108723576902721).

171078110788959 is a wasteful number, since it uses less digits than its factorization.

171078110788959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577862 (or 577853 counting only the distinct ones).

The product of its (nonzero) digits is 71124480, while the sum is 72.

The spelling of 171078110788959 in words is "one hundred seventy-one trillion, seventy-eight billion, one hundred ten million, seven hundred eighty-eight thousand, nine hundred fifty-nine".