3661322265 has 12 divisors (see below), whose sum is σ = 6346292004. Its totient is φ = 1952705184.

The previous prime is 3661322251. The next prime is 3661322279. The reversal of 3661322265 is 5622231663.

3661322265 is a `hidden beast` number, since 36 + 613 + 2 + 2 + 2 + 6 + 5 = 666.

3661322265 is digitally balanced in base 2, because in such base 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 (3661322251) and next prime (3661322279).

It can be written as a sum of positive squares in 2 ways, for example, as 1957531536 + 1703790729 = 44244^2 + 41277^2 .

It is not a de Polignac number, because 3661322265 - 2⁶ = 3661322201 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40681314 + ... + 40681403.

It is an arithmetic number, because the mean of its divisors is an integer number (528857667).

Almost surely, 2^3661322265 is an apocalyptic number.

It is an amenable number.

3661322265 is a deficient number, since it is larger than the sum of its proper divisors (2684969739).

3661322265 is a wasteful number, since it uses less digits than its factorization.

3661322265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81362728 (or 81362725 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 3661322265 is about 60508.8610453048. The cubic root of 3661322265 is about 1541.2721069599.

The spelling of 3661322265 in words is "three billion, six hundred sixty-one million, three hundred twenty-two thousand, two hundred sixty-five".