1516668349 has 8 divisors (see below), whose sum is σ = 1739595008. Its totient is φ = 1295306640.

The previous prime is 1516668341. The next prime is 1516668353. The reversal of 1516668349 is 9438666151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1516668349 - 2³ = 1516668341 is a prime.

It is a super-3 number, since 3×1516668349³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1516668341) 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 in 7 ways as a sum of consecutive naturals, for example, 389157 + ... + 393034.

It is an arithmetic number, because the mean of its divisors is an integer number (217449376).

Almost surely, 2^1516668349 is an apocalyptic number.

It is an amenable number.

1516668349 is a deficient number, since it is larger than the sum of its proper divisors (222926659).

1516668349 is an equidigital number, since it uses as much as digits as its factorization.

1516668349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782475.

The product of its digits is 933120, while the sum is 49.

The square root of 1516668349 is about 38944.4264176531. The cubic root of 1516668349 is about 1148.9387434352.

The spelling of 1516668349 in words is "one billion, five hundred sixteen million, six hundred sixty-eight thousand, three hundred forty-nine".