99815682241 has 4 divisors (see below), whose sum is σ = 108889835184. Its totient is φ = 90741529300.

The previous prime is 99815682163. The next prime is 99815682277. The reversal of 99815682241 is 14228651899.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99815682241 - 2¹¹ = 99815680193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99815685241) 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, 4537076455 + ... + 4537076476.

It is an arithmetic number, because the mean of its divisors is an integer number (27222458796).

Almost surely, 2^99815682241 is an apocalyptic number.

It is an amenable number.

99815682241 is a deficient number, since it is larger than the sum of its proper divisors (9074152943).

99815682241 is a wasteful number, since it uses less digits than its factorization.

99815682241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9074152942.

The product of its digits is 2488320, while the sum is 55.

The spelling of 99815682241 in words is "ninety-nine billion, eight hundred fifteen million, six hundred eighty-two thousand, two hundred forty-one".