16432445350665 has 24 divisors (see below), whose sum is σ = 28873082064840. Its totient is φ = 8643916456704.

The previous prime is 16432445350609. The next prime is 16432445350669. The reversal of 16432445350665 is 56605354423461.

16432445350665 is a `hidden beast` number, since 1 + 6 + 4 + 3 + 2 + 44 + 535 + 0 + 6 + 65 = 666.

16432445350665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7252981514496 + 9179463836169 = 2693136^2 + 3029763^2 .

It is not a de Polignac number, because 16432445350665 - 2⁷ = 16432445350537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16432445350669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2501129950 + ... + 2501136519.

It is an arithmetic number, because the mean of its divisors is an integer number (1203045086035).

Almost surely, 2^{16432445350665} is an apocalyptic number.

16432445350665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16432445350665 is a deficient number, since it is larger than the sum of its proper divisors (12440636714175).

16432445350665 is a wasteful number, since it uses less digits than its factorization.

16432445350665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5002266553 (or 5002266550 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 54.

The spelling of 16432445350665 in words is "sixteen trillion, four hundred thirty-two billion, four hundred forty-five million, three hundred fifty thousand, six hundred sixty-five".