99144444653 has 2 divisors, whose sum is σ = 99144444654. Its totient is φ = 99144444652.

The previous prime is 99144444629. The next prime is 99144444727. The reversal of 99144444653 is 35644444199.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91786579369 + 7357865284 = 302963^2 + 85778^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99144444653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99144444595 and 99144444604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99144444613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49572222326 + 49572222327.

It is an arithmetic number, because the mean of its divisors is an integer number (49572222327).

Almost surely, 2^99144444653 is an apocalyptic number.

It is an amenable number.

99144444653 is a deficient number, since it is larger than the sum of its proper divisors (1).

99144444653 is an equidigital number, since it uses as much as digits as its factorization.

99144444653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7464960, while the sum is 53.

The spelling of 99144444653 in words is "ninety-nine billion, one hundred forty-four million, four hundred forty-four thousand, six hundred fifty-three".