4644666650053 has 4 divisors (see below), whose sum is σ = 4670327791948. Its totient is φ = 4619005508160.

The previous prime is 4644666650047. The next prime is 4644666650111. The reversal of 4644666650053 is 3500566664464.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 834432921729 + 3810233728324 = 913473^2 + 1951982^2 .

It is a cyclic number.

It is not a de Polignac number, because 4644666650053 - 2¹⁷ = 4644666518981 is a prime.

It is a super-2 number, since 2×4644666650053² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4644666649976 and 4644666650003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4644666650033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12830570676 + ... + 12830571037.

It is an arithmetic number, because the mean of its divisors is an integer number (1167581947987).

Almost surely, 2^{4644666650053} is an apocalyptic number.

It is an amenable number.

4644666650053 is a deficient number, since it is larger than the sum of its proper divisors (25661141895).

4644666650053 is a wasteful number, since it uses less digits than its factorization.

4644666650053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25661141894.

The product of its (nonzero) digits is 37324800, while the sum is 55.

The spelling of 4644666650053 in words is "four trillion, six hundred forty-four billion, six hundred sixty-six million, six hundred fifty thousand, fifty-three".