3661599312 has 120 divisors (see below), whose sum is σ = 11886320576. Its totient is φ = 1030537728.

The previous prime is 3661599311. The next prime is 3661599313. The reversal of 3661599312 is 2139951663.

3661599312 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 interprime number because it is at equal distance from previous prime (3661599311) and next prime (3661599313).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3661599311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40428 + ... + 94644.

Almost surely, 2^3661599312 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 3661599312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5943160288).

3661599312 is an abundant number, since it is smaller than the sum of its proper divisors (8224721264).

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

3661599312 is a wasteful number, since it uses less digits than its factorization.

3661599312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54305 (or 54296 counting only the distinct ones).

The product of its digits is 262440, while the sum is 45.

The square root of 3661599312 is about 60511.1503113269. The cubic root of 3661599312 is about 1541.3109812620.

The spelling of 3661599312 in words is "three billion, six hundred sixty-one million, five hundred ninety-nine thousand, three hundred twelve".