3806403221616 has 160 divisors (see below), whose sum is σ = 10711966176000. Its totient is φ = 1160107167744.

The previous prime is 3806403221609. The next prime is 3806403221623. The reversal of 3806403221616 is 6161223046083.

It is an interprime number because it is at equal distance from previous prime (3806403221609) and next prime (3806403221623).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68975251 + ... + 69030413.

It is an arithmetic number, because the mean of its divisors is an integer number (66949788600).

Almost surely, 2^{3806403221616} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3806403221616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5355983088000).

3806403221616 is an abundant number, since it is smaller than the sum of its proper divisors (6905562954384).

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

3806403221616 is a wasteful number, since it uses less digits than its factorization.

3806403221616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57831 (or 57825 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

Adding to 3806403221616 its reverse (6161223046083), we get a palindrome (9967626267699).

The spelling of 3806403221616 in words is "three trillion, eight hundred six billion, four hundred three million, two hundred twenty-one thousand, six hundred sixteen".