1611116836 has 48 divisors (see below), whose sum is σ = 3273984000. Its totient is φ = 679449888.

The previous prime is 1611116813. The next prime is 1611116839. The reversal of 1611116836 is 6386111161.

It is not an unprimeable number, because it can be changed into a prime (1611116839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 766515 + ... + 768613.

It is an arithmetic number, because the mean of its divisors is an integer number (68208000).

Almost surely, 2^1611116836 is an apocalyptic number.

It is an amenable number.

1611116836 is an abundant number, since it is smaller than the sum of its proper divisors (1662867164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1611116836 is a wasteful number, since it uses less digits than its factorization.

1611116836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2536 (or 2534 counting only the distinct ones).

The product of its digits is 5184, while the sum is 34.

The square root of 1611116836 is about 40138.7199098327. The cubic root of 1611116836 is about 1172.3096645500.

Adding to 1611116836 its reverse (6386111161), we get a palindrome (7997227997).

The spelling of 1611116836 in words is "one billion, six hundred eleven million, one hundred sixteen thousand, eight hundred thirty-six".