3655664163236 has 12 divisors (see below), whose sum is σ = 6397429796940. Its totient is φ = 1827827078400.

The previous prime is 3655664163211. The next prime is 3655664163241. The reversal of 3655664163236 is 6323614665563.

It can be written as a sum of positive squares in 2 ways, for example, as 2725616091136 + 930048072100 = 1650944^2 + 964390^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 748136 + ... + 2805536.

It is an arithmetic number, because the mean of its divisors is an integer number (533119149745).

Almost surely, 2^{3655664163236} is an apocalyptic number.

It is an amenable number.

3655664163236 is a deficient number, since it is larger than the sum of its proper divisors (2741765633704).

3655664163236 is a wasteful number, since it uses less digits than its factorization.

3655664163236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501614 (or 2501612 counting only the distinct ones).

The product of its digits is 41990400, while the sum is 56.

The spelling of 3655664163236 in words is "three trillion, six hundred fifty-five billion, six hundred sixty-four million, one hundred sixty-three thousand, two hundred thirty-six".