15654116449 has 2 divisors, whose sum is σ = 15654116450. Its totient is φ = 15654116448.

The previous prime is 15654116437. The next prime is 15654116483. The reversal of 15654116449 is 94461145651.

15654116449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8993108224 + 6661008225 = 94832^2 + 81615^2 .

It is a cyclic number.

It is not a de Polignac number, because 15654116449 - 2²¹ = 15652019297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15654116399 and 15654116408.

It is not a weakly prime, because it can be changed into another prime (15654116419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7827058224 + 7827058225.

It is an arithmetic number, because the mean of its divisors is an integer number (7827058225).

Almost surely, 2^15654116449 is an apocalyptic number.

It is an amenable number.

15654116449 is a deficient number, since it is larger than the sum of its proper divisors (1).

15654116449 is an equidigital number, since it uses as much as digits as its factorization.

15654116449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 46.

The spelling of 15654116449 in words is "fifteen billion, six hundred fifty-four million, one hundred sixteen thousand, four hundred forty-nine".