8224644165551 has 24 divisors (see below), whose sum is σ = 9152147247600. Its totient is φ = 7384815504000.

The previous prime is 8224644165523. The next prime is 8224644165583. The reversal of 8224644165551 is 1555614464228.

It is not a de Polignac number, because 8224644165551 - 2¹⁴ = 8224644149167 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8224644165493 and 8224644165502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8224644162551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4175660 + ... + 5821118.

It is an arithmetic number, because the mean of its divisors is an integer number (381339468650).

Almost surely, 2^{8224644165551} is an apocalyptic number.

8224644165551 is a deficient number, since it is larger than the sum of its proper divisors (927503082049).

8224644165551 is a wasteful number, since it uses less digits than its factorization.

8224644165551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645991 (or 1645980 counting only the distinct ones).

The product of its digits is 9216000, while the sum is 53.

The spelling of 8224644165551 in words is "eight trillion, two hundred twenty-four billion, six hundred forty-four million, one hundred sixty-five thousand, five hundred fifty-one".