171217245132 has 36 divisors (see below), whose sum is σ = 432812565640. Its totient is φ = 57070645632.

The previous prime is 171217245079. The next prime is 171217245187. The reversal of 171217245132 is 231542712171.

171217245132 is a `hidden beast` number, since 1 + 7 + 1 + 2 + 172 + 451 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1665828 + ... + 1765620.

Almost surely, 2^171217245132 is an apocalyptic number.

171217245132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

171217245132 is an abundant number, since it is smaller than the sum of its proper divisors (261595320508).

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

171217245132 is a wasteful number, since it uses less digits than its factorization.

171217245132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147462 (or 147457 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The spelling of 171217245132 in words is "one hundred seventy-one billion, two hundred seventeen million, two hundred forty-five thousand, one hundred thirty-two".