16005560149 has 2 divisors, whose sum is σ = 16005560150. Its totient is φ = 16005560148.

The previous prime is 16005560113. The next prime is 16005560167. The reversal of 16005560149 is 94106550061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9627141924 + 6378418225 = 98118^2 + 79865^2 .

It is a cyclic number.

It is not a de Polignac number, because 16005560149 - 2¹³ = 16005551957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16005560189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8002780074 + 8002780075.

It is an arithmetic number, because the mean of its divisors is an integer number (8002780075).

Almost surely, 2^16005560149 is an apocalyptic number.

It is an amenable number.

16005560149 is a deficient number, since it is larger than the sum of its proper divisors (1).

16005560149 is an equidigital number, since it uses as much as digits as its factorization.

16005560149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 16005560149 in words is "sixteen billion, five million, five hundred sixty thousand, one hundred forty-nine".