99795455872 has 128 divisors (see below), whose sum is σ = 240633699840. Its totient is φ = 40298784768.

The previous prime is 99795455839. The next prime is 99795455887. The reversal of 99795455872 is 27855459799.

99795455872 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-3 number, since 3×99795455872³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1344598 + ... + 1416874.

It is an arithmetic number, because the mean of its divisors is an integer number (1879950780).

Almost surely, 2^99795455872 is an apocalyptic number.

99795455872 is a gapful number since it is divisible by the number (92) 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 99795455872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120316849920).

99795455872 is an abundant number, since it is smaller than the sum of its proper divisors (140838243968).

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

99795455872 is a wasteful number, since it uses less digits than its factorization.

99795455872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72388 (or 72376 counting only the distinct ones).

The product of its digits is 285768000, while the sum is 70.

The spelling of 99795455872 in words is "ninety-nine billion, seven hundred ninety-five million, four hundred fifty-five thousand, eight hundred seventy-two".