1516668319 has 2 divisors, whose sum is σ = 1516668320. Its totient is φ = 1516668318.

The previous prime is 1516668301. The next prime is 1516668341. The reversal of 1516668319 is 9138666151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1516668319 - 2⁵ = 1516668287 is a prime.

It is a super-2 number, since 2×1516668319² = 4600565579716571522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1516668359) 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, 758334159 + 758334160.

It is an arithmetic number, because the mean of its divisors is an integer number (758334160).

Almost surely, 2^1516668319 is an apocalyptic number.

1516668319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1516668319 is an equidigital number, since it uses as much as digits as its factorization.

1516668319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 46.

The square root of 1516668319 is about 38944.4260324889. The cubic root of 1516668319 is about 1148.9387358598.

The spelling of 1516668319 in words is "one billion, five hundred sixteen million, six hundred sixty-eight thousand, three hundred nineteen".