5646623553 has 12 divisors (see below), whose sum is σ = 8437483860. Its totient is φ = 3634608096.

The previous prime is 5646623531. The next prime is 5646623599. The reversal of 5646623553 is 3553266465.

5646623553 is a `hidden beast` number, since 56 + 46 + 6 + 2 + 3 + 553 = 666.

5646623553 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3973159089 + 1673464464 = 63033^2 + 40908^2 .

It is not a de Polignac number, because 5646623553 - 2⁹ = 5646623041 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 5646623499 and 5646623508.

It is not an unprimeable number, because it can be changed into a prime (5646623503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10817026 + ... + 10817547.

It is an arithmetic number, because the mean of its divisors is an integer number (703123655).

Almost surely, 2^5646623553 is an apocalyptic number.

It is an amenable number.

5646623553 is a deficient number, since it is larger than the sum of its proper divisors (2790860307).

5646623553 is a wasteful number, since it uses less digits than its factorization.

5646623553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21634608 (or 21634605 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 45.

The square root of 5646623553 is about 75144.0187440092. The cubic root of 5646623553 is about 1780.7226322527.

The spelling of 5646623553 in words is "five billion, six hundred forty-six million, six hundred twenty-three thousand, five hundred fifty-three".