1516653153121 has 2 divisors, whose sum is σ = 1516653153122. Its totient is φ = 1516653153120.

The previous prime is 1516653153013. The next prime is 1516653153133. The reversal of 1516653153121 is 1213513566151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1344730140625 + 171923012496 = 1159625^2 + 414636^2 .

It is an emirp because it is prime and its reverse (1213513566151) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1516653153121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1516653153181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 758326576560 + 758326576561.

It is an arithmetic number, because the mean of its divisors is an integer number (758326576561).

Almost surely, 2^{1516653153121} is an apocalyptic number.

It is an amenable number.

1516653153121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1516653153121 is an equidigital number, since it uses as much as digits as its factorization.

1516653153121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81000, while the sum is 40.

The spelling of 1516653153121 in words is "one trillion, five hundred sixteen billion, six hundred fifty-three million, one hundred fifty-three thousand, one hundred twenty-one".