99440132097 has 32 divisors (see below), whose sum is σ = 142252629120. Its totient is φ = 61606379520.

The previous prime is 99440132093. The next prime is 99440132149. The reversal of 99440132097 is 79023104499.

It is a happy number.

It is not a de Polignac number, because 99440132097 - 2² = 99440132093 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99440132093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 545197 + ... + 704357.

It is an arithmetic number, because the mean of its divisors is an integer number (4445394660).

It is a Proth number, since it is equal to 189667 ⋅ 2¹⁹ + 1 and 189667 < 2¹⁹.

Almost surely, 2^99440132097 is an apocalyptic number.

99440132097 is a gapful number since it is divisible by the number (97) formed by its first and last digit.

It is an amenable number.

99440132097 is a deficient number, since it is larger than the sum of its proper divisors (42812497023).

99440132097 is a wasteful number, since it uses less digits than its factorization.

99440132097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159393.

The product of its (nonzero) digits is 489888, while the sum is 48.

The spelling of 99440132097 in words is "ninety-nine billion, four hundred forty million, one hundred thirty-two thousand, ninety-seven".