3665660148 has 18 divisors (see below), whose sum is σ = 9265974354. Its totient is φ = 1221886704.

The previous prime is 3665660123. The next prime is 3665660183. The reversal of 3665660148 is 8410665663.

3665660148 is a `hidden beast` number, since 36 + 6 + 5 + 6 + 601 + 4 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3572691984 + 92968164 = 59772^2 + 9642^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50911911 + ... + 50911982.

It is an arithmetic number, because the mean of its divisors is an integer number (514776353).

Almost surely, 2^3665660148 is an apocalyptic number.

It is an amenable number.

3665660148 is an abundant number, since it is smaller than the sum of its proper divisors (5600314206).

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

3665660148 is a wasteful number, since it uses less digits than its factorization.

3665660148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101823903 (or 101823898 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 3665660148 is about 60544.6954571579. The cubic root of 3665660148 is about 1541.8805592154.

The spelling of 3665660148 in words is "three billion, six hundred sixty-five million, six hundred sixty thousand, one hundred forty-eight".