1516668049 has 8 divisors (see below), whose sum is σ = 1636007912. Its totient is φ = 1397710080.

The previous prime is 1516668029. The next prime is 1516668053. The reversal of 1516668049 is 9408666151.

It can be written as a sum of positive squares in 4 ways, for example, as 54982225 + 1461685824 = 7415^2 + 38232^2 .

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

It is not a de Polignac number, because 1516668049 - 2²⁵ = 1483113617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1516668029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87192 + ... + 103129.

It is an arithmetic number, because the mean of its divisors is an integer number (204500989).

Almost surely, 2^1516668049 is an apocalyptic number.

It is an amenable number.

1516668049 is a deficient number, since it is larger than the sum of its proper divisors (119339863).

1516668049 is a wasteful number, since it uses less digits than its factorization.

1516668049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190947.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 1516668049 is about 38944.4225660107. The cubic root of 1516668049 is about 1148.9386676811.

The spelling of 1516668049 in words is "one billion, five hundred sixteen million, six hundred sixty-eight thousand, forty-nine".