171140436012 has 96 divisors (see below), whose sum is σ = 497401938432. Its totient is φ = 44592109056.

The previous prime is 171140435957. The next prime is 171140436017. The reversal of 171140436012 is 210634041171.

It is not an unprimeable number, because it can be changed into a prime (171140436017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 853473 + ... + 1034744.

It is an arithmetic number, because the mean of its divisors is an integer number (5181270192).

Almost surely, 2^171140436012 is an apocalyptic number.

171140436012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

171140436012 is an abundant number, since it is smaller than the sum of its proper divisors (326261502420).

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

171140436012 is a wasteful number, since it uses less digits than its factorization.

171140436012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888327 (or 1888325 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

Adding to 171140436012 its reverse (210634041171), we get a palindrome (381774477183).

The spelling of 171140436012 in words is "one hundred seventy-one billion, one hundred forty million, four hundred thirty-six thousand, twelve".