4436221645655 has 32 divisors (see below), whose sum is σ = 5901780182400. Its totient is φ = 3189031921152.

The previous prime is 4436221645631. The next prime is 4436221645673. The reversal of 4436221645655 is 5565461226344.

It is a cyclic number.

It is not a de Polignac number, because 4436221645655 - 2¹⁸ = 4436221383511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4436221645597 and 4436221645606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17852300 + ... + 18099089.

It is an arithmetic number, because the mean of its divisors is an integer number (184430630700).

Almost surely, 2^{4436221645655} is an apocalyptic number.

4436221645655 is a deficient number, since it is larger than the sum of its proper divisors (1465558536745).

4436221645655 is a wasteful number, since it uses less digits than its factorization.

4436221645655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35951483.

The product of its digits is 20736000, while the sum is 53.

The spelling of 4436221645655 in words is "four trillion, four hundred thirty-six billion, two hundred twenty-one million, six hundred forty-five thousand, six hundred fifty-five".