99165849649 has 8 divisors (see below), whose sum is σ = 99330478952. Its totient is φ = 99001301760.

The previous prime is 99165849637. The next prime is 99165849677. The reversal of 99165849649 is 94694856199.

It can be written as a sum of positive squares in 4 ways, for example, as 13916449024 + 85249400625 = 117968^2 + 291975^2 .

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 99165849649 - 2⁹ = 99165849137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99165849049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2718169 + ... + 2754409.

It is an arithmetic number, because the mean of its divisors is an integer number (12416309869).

Almost surely, 2^99165849649 is an apocalyptic number.

It is an amenable number.

99165849649 is a deficient number, since it is larger than the sum of its proper divisors (164629303).

99165849649 is a wasteful number, since it uses less digits than its factorization.

99165849649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40707.

The product of its digits is 151165440, while the sum is 70.

The spelling of 99165849649 in words is "ninety-nine billion, one hundred sixty-five million, eight hundred forty-nine thousand, six hundred forty-nine".