4553816568 has 48 divisors (see below), whose sum is σ = 13243245480. Its totient is φ = 1301090112.

The previous prime is 4553816563. The next prime is 4553816587. The reversal of 4553816568 is 8656183554.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4553816568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4553816563) 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, 1934971 + ... + 1937322.

Almost surely, 2^4553816568 is an apocalyptic number.

It is an amenable number.

4553816568 is an abundant number, since it is smaller than the sum of its proper divisors (8689428912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4553816568 is a wasteful number, since it uses less digits than its factorization.

4553816568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3872316 (or 3872305 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 51.

The square root of 4553816568 is about 67481.9721703508. The cubic root of 4553816568 is about 1657.5189830594.

It can be divided in two parts, 4553 and 816568, that added together give a triangular number (821121 = T₁₂₈₁).

The spelling of 4553816568 in words is "four billion, five hundred fifty-three million, eight hundred sixteen thousand, five hundred sixty-eight".