3656228226563 has 12 divisors (see below), whose sum is σ = 4019686707624. Its totient is φ = 3323134768800.

The previous prime is 3656228226493. The next prime is 3656228226601.

3656228226563 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-3656228226563 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3656228226499 and 3656228226508.

It is not an unprimeable number, because it can be changed into a prime (3656228226163) 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, 2653106 + ... + 3788327.

It is an arithmetic number, because the mean of its divisors is an integer number (334973892302).

Almost surely, 2^{3656228226563} is an apocalyptic number.

3656228226563 is a deficient number, since it is larger than the sum of its proper divisors (363458481061).

3656228226563 is a wasteful number, since it uses less digits than its factorization.

3656228226563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6446146 (or 6446135 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 56.

The spelling of 3656228226563 in words is "three trillion, six hundred fifty-six billion, two hundred twenty-eight million, two hundred twenty-six thousand, five hundred sixty-three".