171146505042 has 32 divisors (see below), whose sum is σ = 380459309760. Its totient is φ = 57028773600.

The previous prime is 171146505017. The next prime is 171146505043. The reversal of 171146505042 is 240505641171.

171146505042 is a `hidden beast` number, since 1 + 7 + 1 + 146 + 5 + 0 + 504 + 2 = 666.

It is a super-2 number, since 2×171146505042² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 171146504988 and 171146505006.

It is not an unprimeable number, because it can be changed into a prime (171146505043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401883 + ... + 709790.

It is an arithmetic number, because the mean of its divisors is an integer number (11889353430).

Almost surely, 2^171146505042 is an apocalyptic number.

171146505042 is an abundant number, since it is smaller than the sum of its proper divisors (209312804718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

171146505042 is a wasteful number, since it uses less digits than its factorization.

171146505042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114535 (or 1114529 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The spelling of 171146505042 in words is "one hundred seventy-one billion, one hundred forty-six million, five hundred five thousand, forty-two".