3661055361 has 32 divisors (see below), whose sum is σ = 5525757440. Its totient is φ = 2395008000.

The previous prime is 3661055357. The next prime is 3661055371. The reversal of 3661055361 is 1635501663.

3661055361 is a `hidden beast` number, since 3 + 6 + 610 + 5 + 5 + 36 + 1 = 666.

It is not a de Polignac number, because 3661055361 - 2² = 3661055357 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3661055311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 760161 + ... + 764961.

It is an arithmetic number, because the mean of its divisors is an integer number (172679920).

Almost surely, 2^3661055361 is an apocalyptic number.

It is an amenable number.

3661055361 is a deficient number, since it is larger than the sum of its proper divisors (1864702079).

3661055361 is a wasteful number, since it uses less digits than its factorization.

3661055361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5334 (or 5328 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 3661055361 is about 60506.6555099520. The cubic root of 3661055361 is about 1541.2346540347.

The spelling of 3661055361 in words is "three billion, six hundred sixty-one million, fifty-five thousand, three hundred sixty-one".