16066403 has 2 divisors, whose sum is σ = 16066404. Its totient is φ = 16066402.

The previous prime is 16066361. The next prime is 16066417. The reversal of 16066403 is 30466061.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16066403 - 2⁸ = 16066147 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16066423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8033201 + 8033202.

It is an arithmetic number, because the mean of its divisors is an integer number (8033202).

Almost surely, 2^16066403 is an apocalyptic number.

16066403 is a deficient number, since it is larger than the sum of its proper divisors (1).

16066403 is an equidigital number, since it uses as much as digits as its factorization.

16066403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 16066403 is about 4008.2917807964. The cubic root of 16066403 is about 252.3323227506.

The spelling of 16066403 in words is "sixteen million, sixty-six thousand, four hundred three".