3738665616 has 160 divisors (see below), whose sum is σ = 11685442560. Its totient is φ = 1007258112.

The previous prime is 3738665569. The next prime is 3738665621. The reversal of 3738665616 is 6165668373.

It is a happy number.

3738665616 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, 414531 + ... + 423453.

It is an arithmetic number, because the mean of its divisors is an integer number (73034016).

Almost surely, 2^3738665616 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 3738665616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5842721280).

3738665616 is an abundant number, since it is smaller than the sum of its proper divisors (7946776944).

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

3738665616 is a wasteful number, since it uses less digits than its factorization.

3738665616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9013 (or 9007 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 51.

The square root of 3738665616 is about 61144.6286766058. The cubic root of 3738665616 is about 1552.0494036954.

The spelling of 3738665616 in words is "three billion, seven hundred thirty-eight million, six hundred sixty-five thousand, six hundred sixteen".