16172043471 has 8 divisors (see below), whose sum is σ = 23958582960. Its totient is φ = 10781362296.

The previous prime is 16172043463. The next prime is 16172043473. The reversal of 16172043471 is 17434027161.

16172043471 is a `hidden beast` number, since 1 + 617 + 2 + 0 + 4 + 34 + 7 + 1 = 666.

It is not a de Polignac number, because 16172043471 - 2³ = 16172043463 is a prime.

It is a super-3 number, since 3×16172043471³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16172043473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299482260 + ... + 299482313.

It is an arithmetic number, because the mean of its divisors is an integer number (2994822870).

Almost surely, 2^16172043471 is an apocalyptic number.

16172043471 is a deficient number, since it is larger than the sum of its proper divisors (7786539489).

16172043471 is an equidigital number, since it uses as much as digits as its factorization.

16172043471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598964582 (or 598964576 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The spelling of 16172043471 in words is "sixteen billion, one hundred seventy-two million, forty-three thousand, four hundred seventy-one".