1816411516 has 12 divisors (see below), whose sum is σ = 3181489920. Its totient is φ = 907414400.

The previous prime is 1816411507. The next prime is 1816411517. The reversal of 1816411516 is 6151146181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1816411517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192661 + ... + 201868.

It is an arithmetic number, because the mean of its divisors is an integer number (265124160).

Almost surely, 2^1816411516 is an apocalyptic number.

It is an amenable number.

1816411516 is a deficient number, since it is larger than the sum of its proper divisors (1365078404).

1816411516 is a wasteful number, since it uses less digits than its factorization.

1816411516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395684 (or 395682 counting only the distinct ones).

The product of its digits is 5760, while the sum is 34.

The square root of 1816411516 is about 42619.3795825326. The cubic root of 1816411516 is about 1220.1261886853.

Adding to 1816411516 its reverse (6151146181), we get a palindrome (7967557697).

The spelling of 1816411516 in words is "one billion, eight hundred sixteen million, four hundred eleven thousand, five hundred sixteen".