99244897920001 has 4 divisors (see below), whose sum is σ = 99670841688132. Its totient is φ = 98818954151872.

The previous prime is 99244897919941. The next prime is 99244897920011. The reversal of 99244897920001 is 10002979844299.

It is a happy number.

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 15522031919601 + 83722866000400 = 3939801^2 + 9150020^2 .

It is a cyclic number.

It is not a de Polignac number, because 99244897920001 - 2¹⁷ = 99244897788929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99244897920011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212971883716 + ... + 212971884181.

It is an arithmetic number, because the mean of its divisors is an integer number (24917710422033).

Almost surely, 2^{99244897920001} is an apocalyptic number.

It is an amenable number.

99244897920001 is a deficient number, since it is larger than the sum of its proper divisors (425943768131).

99244897920001 is a wasteful number, since it uses less digits than its factorization.

99244897920001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425943768130.

The product of its (nonzero) digits is 23514624, while the sum is 64.

The spelling of 99244897920001 in words is "ninety-nine trillion, two hundred forty-four billion, eight hundred ninety-seven million, nine hundred twenty thousand, one".