16532559241 has 9 divisors (see below), whose sum is σ = 18173706663. Its totient is φ = 15028313520.

The previous prime is 16532559227. The next prime is 16532559311. The reversal of 16532559241 is 14295523561.

The square root of 16532559241 is 128579.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 16391424841 + 141134400 = 128029^2 + 11880^2 .

It is not a de Polignac number, because 16532559241 - 2⁵ = 16532559209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16532559341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1408525 + ... + 1420213.

Almost surely, 2^16532559241 is an apocalyptic number.

16532559241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16532559241 is the 128579-th square number.

16532559241 is the 64290-th centered octagonal number.

It is an amenable number.

16532559241 is a deficient number, since it is larger than the sum of its proper divisors (1641147422).

16532559241 is an frugal number, since it uses more digits than its factorization.

16532559241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23400 (or 11700 counting only the distinct ones).

The product of its digits is 324000, while the sum is 43.

The spelling of 16532559241 in words is "sixteen billion, five hundred thirty-two million, five hundred fifty-nine thousand, two hundred forty-one".