15455664149 has 2 divisors, whose sum is σ = 15455664150. Its totient is φ = 15455664148.

The previous prime is 15455664137. The next prime is 15455664221. The reversal of 15455664149 is 94146655451.

15455664149 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., 11197449124 + 4258215025 = 105818^2 + 65255^2 .

It is a cyclic number.

It is not a de Polignac number, because 15455664149 - 2¹² = 15455660053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15455664097 and 15455664106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15455664649) 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, 7727832074 + 7727832075.

It is an arithmetic number, because the mean of its divisors is an integer number (7727832075).

Almost surely, 2^15455664149 is an apocalyptic number.

It is an amenable number.

15455664149 is a deficient number, since it is larger than the sum of its proper divisors (1).

15455664149 is an equidigital number, since it uses as much as digits as its factorization.

15455664149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592000, while the sum is 50.

The spelling of 15455664149 in words is "fifteen billion, four hundred fifty-five million, six hundred sixty-four thousand, one hundred forty-nine".