5511563645 has 16 divisors (see below), whose sum is σ = 7560030720. Its totient is φ = 3778700544.

The previous prime is 5511563641. The next prime is 5511563663. The reversal of 5511563645 is 5463651155.

It is a cyclic number.

It is not a de Polignac number, because 5511563645 - 2² = 5511563641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5511563641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277724 + ... + 296906.

It is an arithmetic number, because the mean of its divisors is an integer number (472501920).

Almost surely, 2^5511563645 is an apocalyptic number.

It is an amenable number.

5511563645 is a deficient number, since it is larger than the sum of its proper divisors (2048467075).

5511563645 is a wasteful number, since it uses less digits than its factorization.

5511563645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27404.

The product of its digits is 270000, while the sum is 41.

The square root of 5511563645 is about 74239.9060142185. The cubic root of 5511563645 is about 1766.4103833570.

The spelling of 5511563645 in words is "five billion, five hundred eleven million, five hundred sixty-three thousand, six hundred forty-five".