1516668353 has 2 divisors, whose sum is σ = 1516668354. Its totient is φ = 1516668352.

The previous prime is 1516668341. The next prime is 1516668359. The reversal of 1516668353 is 3538666151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1479787024 + 36881329 = 38468^2 + 6073^2 .

It is a cyclic number.

It is not a de Polignac number, because 1516668353 - 2¹² = 1516664257 is a prime.

It is not a weakly prime, because it can be changed into another prime (1516668359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 758334176 + 758334177.

It is an arithmetic number, because the mean of its divisors is an integer number (758334177).

Almost surely, 2^1516668353 is an apocalyptic number.

It is an amenable number.

1516668353 is a deficient number, since it is larger than the sum of its proper divisors (1).

1516668353 is an equidigital number, since it uses as much as digits as its factorization.

1516668353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 44.

The square root of 1516668353 is about 38944.4264690084. The cubic root of 1516668353 is about 1148.9387444453.

The spelling of 1516668353 in words is "one billion, five hundred sixteen million, six hundred sixty-eight thousand, three hundred fifty-three".