16266641 has 4 divisors (see below), whose sum is σ = 17122800. Its totient is φ = 15410484.

The previous prime is 16266631. The next prime is 16266647. The reversal of 16266641 is 14666261.

16266641 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, and also an emirpimes, since its reverse is a distinct semiprime: 14666261 = 137 ⋅107053.

It is a cyclic number.

It is not a de Polignac number, because 16266641 - 2⁶ = 16266577 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16266598 and 16266607.

It is not an unprimeable number, because it can be changed into a prime (16266647) 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, 428051 + ... + 428088.

It is an arithmetic number, because the mean of its divisors is an integer number (4280700).

Almost surely, 2^16266641 is an apocalyptic number.

It is an amenable number.

16266641 is a deficient number, since it is larger than the sum of its proper divisors (856159).

16266641 is an equidigital number, since it uses as much as digits as its factorization.

16266641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856158.

The product of its digits is 10368, while the sum is 32.

The square root of 16266641 is about 4033.1924080063. The cubic root of 16266641 is about 253.3762829227.

The spelling of 16266641 in words is "sixteen million, two hundred sixty-six thousand, six hundred forty-one".