99400505005 has 4 divisors (see below), whose sum is σ = 119280606012. Its totient is φ = 79520404000.

The previous prime is 99400505003. The next prime is 99400505053. The reversal of 99400505005 is 50050500499.

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 18506337444 + 80894167561 = 136038^2 + 284419^2 .

It is not a de Polignac number, because 99400505005 - 2¹ = 99400505003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99400505003) 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, 9940050496 + ... + 9940050505.

It is an arithmetic number, because the mean of its divisors is an integer number (29820151503).

Almost surely, 2^99400505005 is an apocalyptic number.

It is an amenable number.

99400505005 is a deficient number, since it is larger than the sum of its proper divisors (19880101007).

99400505005 is a wasteful number, since it uses less digits than its factorization.

99400505005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19880101006.

The product of its (nonzero) digits is 40500, while the sum is 37.

The spelling of 99400505005 in words is "ninety-nine billion, four hundred million, five hundred five thousand, five".