16065641 has 4 divisors (see below), whose sum is σ = 16338000. Its totient is φ = 15793284.

The previous prime is 16065611. The next prime is 16065649. The reversal of 16065641 is 14656061.

16065641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16065641 - 2²² = 11871337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16065649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136091 + ... + 136208.

It is an arithmetic number, because the mean of its divisors is an integer number (4084500).

Almost surely, 2^16065641 is an apocalyptic number.

It is an amenable number.

16065641 is a deficient number, since it is larger than the sum of its proper divisors (272359).

16065641 is an equidigital number, since it uses as much as digits as its factorization.

16065641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272358.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 16065641 is about 4008.1967267089. The cubic root of 16065641 is about 252.3283334679.

The spelling of 16065641 in words is "sixteen million, sixty-five thousand, six hundred forty-one".