4256416643563 has 12 divisors (see below), whose sum is σ = 4977265076352. Its totient is φ = 3629255768880.

The previous prime is 4256416643537. The next prime is 4256416643569. The reversal of 4256416643563 is 3653466146524.

It is not a de Polignac number, because 4256416643563 - 2⁹ = 4256416643051 is a prime.

It is a super-2 number, since 2×4256416643563² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4256416643569) 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, 227387620 + ... + 227406337.

It is an arithmetic number, because the mean of its divisors is an integer number (414772089696).

Almost surely, 2^{4256416643563} is an apocalyptic number.

4256416643563 is a deficient number, since it is larger than the sum of its proper divisors (720848432789).

4256416643563 is a wasteful number, since it uses less digits than its factorization.

4256416643563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454794162 (or 454794155 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 55.

The spelling of 4256416643563 in words is "four trillion, two hundred fifty-six billion, four hundred sixteen million, six hundred forty-three thousand, five hundred sixty-three".