16432445350557 has 12 divisors (see below), whose sum is σ = 23749741308540. Its totient is φ = 10948508068608.

The previous prime is 16432445350537. The next prime is 16432445350609. The reversal of 16432445350557 is 75505354423461.

16432445350557 is a `hidden beast` number, since 1 + 6 + 4 + 32 + 4 + 4 + 5 + 3 + 50 + 557 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7588845905796 + 8843599444761 = 2754786^2 + 2973819^2 .

It is not a de Polignac number, because 16432445350557 - 2⁷ = 16432445350429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16432445350507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 537942082 + ... + 537972627.

It is an arithmetic number, because the mean of its divisors is an integer number (1979145109045).

Almost surely, 2^{16432445350557} is an apocalyptic number.

It is an amenable number.

16432445350557 is a deficient number, since it is larger than the sum of its proper divisors (7317295957983).

16432445350557 is a wasteful number, since it uses less digits than its factorization.

16432445350557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075916412 (or 1075916409 counting only the distinct ones).

The product of its (nonzero) digits is 30240000, while the sum is 54.

The spelling of 16432445350557 in words is "sixteen trillion, four hundred thirty-two billion, four hundred forty-five million, three hundred fifty thousand, five hundred fifty-seven".