99544330915 has 16 divisors (see below), whose sum is σ = 123586627680. Its totient is φ = 76880482560.

The previous prime is 99544330913. The next prime is 99544330933. The reversal of 99544330915 is 51903344599.

It is not a de Polignac number, because 99544330915 - 2¹ = 99544330913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99544330913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1388500 + ... + 1458430.

It is an arithmetic number, because the mean of its divisors is an integer number (7724164230).

Almost surely, 2^99544330915 is an apocalyptic number.

99544330915 is a deficient number, since it is larger than the sum of its proper divisors (24042296765).

99544330915 is a wasteful number, since it uses less digits than its factorization.

99544330915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79782.

The product of its (nonzero) digits is 2624400, while the sum is 52.

The spelling of 99544330915 in words is "ninety-nine billion, five hundred forty-four million, three hundred thirty thousand, nine hundred fifteen".