99259688544 has 24 divisors (see below), whose sum is σ = 260556682680. Its totient is φ = 33086562816.

The previous prime is 99259688537. The next prime is 99259688579. The reversal of 99259688544 is 44588695299.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 516977449 + ... + 516977640.

It is an arithmetic number, because the mean of its divisors is an integer number (10856528445).

Almost surely, 2^99259688544 is an apocalyptic number.

It is an amenable number.

99259688544 is an abundant number, since it is smaller than the sum of its proper divisors (161296994136).

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

99259688544 is a wasteful number, since it uses less digits than its factorization.

99259688544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033955102 (or 1033955094 counting only the distinct ones).

The product of its digits is 223948800, while the sum is 69.

The spelling of 99259688544 in words is "ninety-nine billion, two hundred fifty-nine million, six hundred eighty-eight thousand, five hundred forty-four".