99528755508 has 864 divisors, whose sum is σ = 354282888960. Its totient is φ = 24141680640.

The previous prime is 99528755489. The next prime is 99528755533. The reversal of 99528755508 is 80555782599.

99528755508 is a `hidden beast` number, since 9 + 9 + 5 + 2 + 8 + 75 + 550 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 412982268 + ... + 412982508.

It is an arithmetic number, because the mean of its divisors is an integer number (410049640).

Almost surely, 2^99528755508 is an apocalyptic number.

99528755508 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99528755508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177141444480).

99528755508 is an abundant number, since it is smaller than the sum of its proper divisors (254754133452).

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

99528755508 is a wasteful number, since it uses less digits than its factorization.

99528755508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 45360000, while the sum is 63.

The spelling of 99528755508 in words is "ninety-nine billion, five hundred twenty-eight million, seven hundred fifty-five thousand, five hundred eight".