16199801 has 2 divisors, whose sum is σ = 16199802. Its totient is φ = 16199800.

The previous prime is 16199767. The next prime is 16199803. The reversal of 16199801 is 10899161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16192576 + 7225 = 4024^2 + 85^2 .

It is a cyclic number.

It is not a de Polignac number, because 16199801 - 2¹⁴ = 16183417 is a prime.

Together with 16199803, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16199803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8099900 + 8099901.

It is an arithmetic number, because the mean of its divisors is an integer number (8099901).

Almost surely, 2^16199801 is an apocalyptic number.

It is an amenable number.

16199801 is a deficient number, since it is larger than the sum of its proper divisors (1).

16199801 is an equidigital number, since it uses as much as digits as its factorization.

16199801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 35.

The square root of 16199801 is about 4024.8976384500. The cubic root of 16199801 is about 253.0287635178.

The spelling of 16199801 in words is "sixteen million, one hundred ninety-nine thousand, eight hundred one".