16445501099 has 2 divisors, whose sum is σ = 16445501100. Its totient is φ = 16445501098.

The previous prime is 16445501087. The next prime is 16445501131. The reversal of 16445501099 is 99010554461.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16445501099 is a prime.

It is not a weakly prime, because it can be changed into another prime (16445501029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8222750549 + 8222750550.

It is an arithmetic number, because the mean of its divisors is an integer number (8222750550).

Almost surely, 2^16445501099 is an apocalyptic number.

16445501099 is a deficient number, since it is larger than the sum of its proper divisors (1).

16445501099 is an equidigital number, since it uses as much as digits as its factorization.

16445501099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 16445501099 in words is "sixteen billion, four hundred forty-five million, five hundred one thousand, ninety-nine".