168132451471 has 4 divisors (see below), whose sum is σ = 168134006032. Its totient is φ = 168130896912.

The previous prime is 168132451469. The next prime is 168132451499. The reversal of 168132451471 is 174154231861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 168132451471 - 2¹ = 168132451469 is a prime.

It is a super-3 number, since 3×168132451471³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168132451171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601851 + ... + 835756.

It is an arithmetic number, because the mean of its divisors is an integer number (42033501508).

Almost surely, 2^168132451471 is an apocalyptic number.

168132451471 is a deficient number, since it is larger than the sum of its proper divisors (1554561).

168132451471 is a wasteful number, since it uses less digits than its factorization.

168132451471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554560.

The product of its digits is 161280, while the sum is 43.

The spelling of 168132451471 in words is "one hundred sixty-eight billion, one hundred thirty-two million, four hundred fifty-one thousand, four hundred seventy-one".