3661425108 has 144 divisors (see below), whose sum is σ = 10598620032. Its totient is φ = 1054944000.

The previous prime is 3661425071. The next prime is 3661425109. The reversal of 3661425108 is 8015241663.

It is a happy number.

3661425108 is a `hidden beast` number, since 3 + 6 + 614 + 25 + 10 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3661425109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1647438 + ... + 1649658.

It is an arithmetic number, because the mean of its divisors is an integer number (73601528).

Almost surely, 2^3661425108 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 3661425108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5299310016).

3661425108 is an abundant number, since it is smaller than the sum of its proper divisors (6937194924).

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

3661425108 is a wasteful number, since it uses less digits than its factorization.

3661425108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2446 (or 2441 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 3661425108 is about 60509.7108570186. The cubic root of 3661425108 is about 1541.2865377722.

The spelling of 3661425108 in words is "three billion, six hundred sixty-one million, four hundred twenty-five thousand, one hundred eight".