1516164817 has 2 divisors, whose sum is σ = 1516164818. Its totient is φ = 1516164816.

The previous prime is 1516164757. The next prime is 1516164823. The reversal of 1516164817 is 7184616151.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1373147136 + 143017681 = 37056^2 + 11959^2 .

It is a cyclic number.

It is not a de Polignac number, because 1516164817 - 2¹⁵ = 1516132049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1516164817.

It is not a weakly prime, because it can be changed into another prime (1516164827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 758082408 + 758082409.

It is an arithmetic number, because the mean of its divisors is an integer number (758082409).

Almost surely, 2^1516164817 is an apocalyptic number.

It is an amenable number.

1516164817 is a deficient number, since it is larger than the sum of its proper divisors (1).

1516164817 is an equidigital number, since it uses as much as digits as its factorization.

1516164817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 40.

The square root of 1516164817 is about 38937.9611304958. The cubic root of 1516164817 is about 1148.8115806183.

The spelling of 1516164817 in words is "one billion, five hundred sixteen million, one hundred sixty-four thousand, eight hundred seventeen".