99944499601 has 8 divisors (see below), whose sum is σ = 100945871208. Its totient is φ = 98943360000.

The previous prime is 99944499581. The next prime is 99944499649. The reversal of 99944499601 is 10699444999.

It is a happy number.

It is a Cunningham number, because it is equal to 316140²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 74136398400 + 25808101201 = 272280^2 + 160649^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 99944499601 - 2⁵ = 99944499569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99944499101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 884071 + ... + 990691.

It is an arithmetic number, because the mean of its divisors is an integer number (12618233901).

Almost surely, 2^99944499601 is an apocalyptic number.

It is an amenable number.

99944499601 is a deficient number, since it is larger than the sum of its proper divisors (1001371607).

99944499601 is a wasteful number, since it uses less digits than its factorization.

99944499601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116003.

The product of its (nonzero) digits is 22674816, while the sum is 64.

The spelling of 99944499601 in words is "ninety-nine billion, nine hundred forty-four million, four hundred ninety-nine thousand, six hundred one".