16252432161 has 36 divisors (see below), whose sum is σ = 25559129232. Its totient is φ = 9159441984.

The previous prime is 16252432153. The next prime is 16252432223. The reversal of 16252432161 is 16123425261.

16252432161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16252432161 - 2³ = 16252432153 is a prime.

It is a super-2 number, since 2×16252432161² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16252432121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 772990 + ... + 793736.

It is an arithmetic number, because the mean of its divisors is an integer number (709975812).

Almost surely, 2^16252432161 is an apocalyptic number.

It is an amenable number.

16252432161 is a deficient number, since it is larger than the sum of its proper divisors (9306697071).

16252432161 is an equidigital number, since it uses as much as digits as its factorization.

16252432161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20910 (or 20830 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The spelling of 16252432161 in words is "sixteen billion, two hundred fifty-two million, four hundred thirty-two thousand, one hundred sixty-one".