5533556618 has 8 divisors (see below), whose sum is σ = 8737194720. Its totient is φ = 2621158380.

The previous prime is 5533556617. The next prime is 5533556621. The reversal of 5533556618 is 8166553355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×5533556618² = 61240497689223195848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5533556617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72809918 + ... + 72809993.

It is an arithmetic number, because the mean of its divisors is an integer number (1092149340).

Almost surely, 2^5533556618 is an apocalyptic number.

5533556618 is a deficient number, since it is larger than the sum of its proper divisors (3203638102).

5533556618 is a wasteful number, since it uses less digits than its factorization.

5533556618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145619932.

The product of its digits is 1620000, while the sum is 47.

The square root of 5533556618 is about 74387.8795100385. The cubic root of 5533556618 is about 1768.7567868852.

The spelling of 5533556618 in words is "five billion, five hundred thirty-three million, five hundred fifty-six thousand, six hundred eighteen".