1516818338 has 16 divisors (see below), whose sum is σ = 2600916864. Its totient is φ = 649900800.

The previous prime is 1516818299. The next prime is 1516818341. The reversal of 1516818338 is 8338186151.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55931 + ... + 78497.

It is an arithmetic number, because the mean of its divisors is an integer number (162557304).

Almost surely, 2^1516818338 is an apocalyptic number.

1516818338 is a deficient number, since it is larger than the sum of its proper divisors (1084098526).

1516818338 is a wasteful number, since it uses less digits than its factorization.

1516818338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27377.

The product of its digits is 138240, while the sum is 44.

The square root of 1516818338 is about 38946.3520499674. The cubic root of 1516818338 is about 1148.9766164686.

The spelling of 1516818338 in words is "one billion, five hundred sixteen million, eight hundred eighteen thousand, three hundred thirty-eight".