3661163745 has 32 divisors (see below), whose sum is σ = 5955226752. Its totient is φ = 1920264192.

The previous prime is 3661163731. The next prime is 3661163761. The reversal of 3661163745 is 5473611663.

It is not a de Polignac number, because 3661163745 - 2⁴ = 3661163729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3661163697 and 3661163706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 673659 + ... + 679071.

It is an arithmetic number, because the mean of its divisors is an integer number (186100836).

Almost surely, 2^3661163745 is an apocalyptic number.

It is an amenable number.

3661163745 is a deficient number, since it is larger than the sum of its proper divisors (2294063007).

3661163745 is a wasteful number, since it uses less digits than its factorization.

3661163745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6161.

The product of its digits is 272160, while the sum is 42.

The square root of 3661163745 is about 60507.5511403329. The cubic root of 3661163745 is about 1541.2498630852.

The spelling of 3661163745 in words is "three billion, six hundred sixty-one million, one hundred sixty-three thousand, seven hundred forty-five".