99564323041 has 4 divisors (see below), whose sum is σ = 101251854000. Its totient is φ = 97876792084.

The previous prime is 99564323021. The next prime is 99564323059. The reversal of 99564323041 is 14032346599.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14032346599 = 97 ⋅144663367.

It is a cyclic number.

It is not a de Polignac number, because 99564323041 - 2²⁵ = 99530768609 is a prime.

It is a super-2 number, since 2×99564323041² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99564322982 and 99564323000.

It is not an unprimeable number, because it can be changed into a prime (99564323021) 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 3 ways as a sum of consecutive naturals, for example, 843765391 + ... + 843765508.

It is an arithmetic number, because the mean of its divisors is an integer number (25312963500).

Almost surely, 2^99564323041 is an apocalyptic number.

It is an amenable number.

99564323041 is a deficient number, since it is larger than the sum of its proper divisors (1687530959).

99564323041 is a wasteful number, since it uses less digits than its factorization.

99564323041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687530958.

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 99564323041 in words is "ninety-nine billion, five hundred sixty-four million, three hundred twenty-three thousand, forty-one".