3655601361 has 12 divisors (see below), whose sum is σ = 5475880592. Its totient is φ = 2437067412.

The previous prime is 3655601359. The next prime is 3655601371. The reversal of 3655601361 is 1631065563.

3655601361 is a `hidden beast` number, since 3 + 65 + 560 + 1 + 36 + 1 = 666.

It is not a de Polignac number, because 3655601361 - 2¹ = 3655601359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3655601371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7521571 + ... + 7522056.

Almost surely, 2^3655601361 is an apocalyptic number.

It is an amenable number.

3655601361 is a deficient number, since it is larger than the sum of its proper divisors (1820279231).

3655601361 is an equidigital number, since it uses as much as digits as its factorization.

3655601361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15043642 (or 15043630 counting only the distinct ones).

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

The square root of 3655601361 is about 60461.5692899217. The cubic root of 3655601361 is about 1540.4689302551.

The spelling of 3655601361 in words is "three billion, six hundred fifty-five million, six hundred one thousand, three hundred sixty-one".