1516666849 has 8 divisors (see below), whose sum is σ = 1690403040. Its totient is φ = 1352321856.

The previous prime is 1516666843. The next prime is 1516666859. The reversal of 1516666849 is 9486666151.

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 1516666849 - 2³ = 1516666841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1516666796 and 1516666805.

It is not an unprimeable number, because it can be changed into a prime (1516666841) 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 in 7 ways as a sum of consecutive naturals, for example, 2347459 + ... + 2348104.

It is an arithmetic number, because the mean of its divisors is an integer number (211300380).

Almost surely, 2^1516666849 is an apocalyptic number.

1516666849 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1516666849 is a deficient number, since it is larger than the sum of its proper divisors (173736191).

1516666849 is a wasteful number, since it uses less digits than its factorization.

1516666849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4695599.

The product of its digits is 1866240, while the sum is 52.

The square root of 1516666849 is about 38944.4071594369. The cubic root of 1516666849 is about 1148.9383646645.

The spelling of 1516666849 in words is "one billion, five hundred sixteen million, six hundred sixty-six thousand, eight hundred forty-nine".