3726065664 has 120 divisors (see below), whose sum is σ = 11041168320. Its totient is φ = 1241874432.

The previous prime is 3726065663. The next prime is 3726065689. The reversal of 3726065664 is 4665606273.

3726065664 is a `hidden beast` number, since 37 + 2 + 606 + 5 + 6 + 6 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3726065663) 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 7 ways as a sum of consecutive naturals, for example, 438157 + ... + 446579.

It is an arithmetic number, because the mean of its divisors is an integer number (92009736).

Almost surely, 2^3726065664 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 3726065664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5520584160).

3726065664 is an abundant number, since it is smaller than the sum of its proper divisors (7315102656).

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

3726065664 is an frugal number, since it uses more digits than its factorization.

3726065664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8460 (or 8428 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The square root of 3726065664 is about 61041.5077140137. The cubic root of 3726065664 is about 1550.3038827012.

The spelling of 3726065664 in words is "three billion, seven hundred twenty-six million, sixty-five thousand, six hundred sixty-four".