99451354112 has 88 divisors (see below), whose sum is σ = 217445932080. Its totient is φ = 45086965760.

The previous prime is 99451354111. The next prime is 99451354117. The reversal of 99451354112 is 21145315499.

99451354112 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 (88).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99451354111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4370348 + ... + 4393044.

Almost surely, 2^99451354112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99451354112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108722966040).

99451354112 is an abundant number, since it is smaller than the sum of its proper divisors (117994577968).

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

99451354112 is a wasteful number, since it uses less digits than its factorization.

99451354112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23117 (or 23099 counting only the distinct ones).

The product of its digits is 194400, while the sum is 44.

The spelling of 99451354112 in words is "ninety-nine billion, four hundred fifty-one million, three hundred fifty-four thousand, one hundred twelve".