6654641153 has 4 divisors (see below), whose sum is σ = 6672482388. Its totient is φ = 6636799920.

The previous prime is 6654641131. The next prime is 6654641159. The reversal of 6654641153 is 3511464566.

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 3189199729 + 3465441424 = 56473^2 + 58868^2 .

It is a cyclic number.

It is not a de Polignac number, because 6654641153 - 2¹⁸ = 6654379009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6654641153.

It is not an unprimeable number, because it can be changed into a prime (6654641159) 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, 8920058 + ... + 8920803.

It is an arithmetic number, because the mean of its divisors is an integer number (1668120597).

Almost surely, 2^6654641153 is an apocalyptic number.

It is an amenable number.

6654641153 is a deficient number, since it is larger than the sum of its proper divisors (17841235).

6654641153 is a wasteful number, since it uses less digits than its factorization.

6654641153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17841234.

The product of its digits is 259200, while the sum is 41.

The square root of 6654641153 is about 81575.9839229660. The cubic root of 6654641153 is about 1880.9397324866.

The spelling of 6654641153 in words is "six billion, six hundred fifty-four million, six hundred forty-one thousand, one hundred fifty-three".