99999995144 has 32 divisors (see below), whose sum is σ = 215407641600. Its totient is φ = 42632753280.

The previous prime is 99999995129. The next prime is 99999995197. The reversal of 99999995144 is 44159999999.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4663949 + ... + 4685340.

It is an arithmetic number, because the mean of its divisors is an integer number (6731488800).

Almost surely, 2^99999995144 is an apocalyptic number.

It is an amenable number.

99999995144 is an abundant number, since it is smaller than the sum of its proper divisors (115407646456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99999995144 is a wasteful number, since it uses less digits than its factorization.

99999995144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9349493 (or 9349489 counting only the distinct ones).

The product of its digits is 382637520, while the sum is 77.

The spelling of 99999995144 in words is "ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-five thousand, one hundred forty-four".