3665545072 has 40 divisors (see below), whose sum is σ = 8134209536. Its totient is φ = 1567532736.

The previous prime is 3665545061. The next prime is 3665545109. The reversal of 3665545072 is 2705455663.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16513 + ... + 87199.

Almost surely, 2^3665545072 is an apocalyptic number.

It is an amenable number.

3665545072 is an abundant number, since it is smaller than the sum of its proper divisors (4468664464).

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

3665545072 is a wasteful number, since it uses less digits than its factorization.

3665545072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71165 (or 71159 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 43.

The square root of 3665545072 is about 60543.7451104571. The cubic root of 3665545072 is about 1541.8644243041.

The spelling of 3665545072 in words is "three billion, six hundred sixty-five million, five hundred forty-five thousand, seventy-two".