1616091836 has 12 divisors (see below), whose sum is σ = 2855619312. Its totient is φ = 800200608.

The previous prime is 1616091821. The next prime is 1616091853. The reversal of 1616091836 is 6381906161.

It is a super-2 number, since 2×1616091836² = 5223505644771701792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1616091793 and 1616091802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1960865 + ... + 1961688.

It is an arithmetic number, because the mean of its divisors is an integer number (237968276).

Almost surely, 2^1616091836 is an apocalyptic number.

It is an amenable number.

1616091836 is a deficient number, since it is larger than the sum of its proper divisors (1239527476).

1616091836 is a wasteful number, since it uses less digits than its factorization.

1616091836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3922660 (or 3922658 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 1616091836 is about 40200.6447211982. The cubic root of 1616091836 is about 1173.5150908241.

Adding to 1616091836 its reverse (6381906161), we get a palindrome (7997997997).

The spelling of 1616091836 in words is "one billion, six hundred sixteen million, ninety-one thousand, eight hundred thirty-six".