99651047424 has 208 divisors, whose sum is σ = 274903065600. Its totient is φ = 32080527360.

The previous prime is 99651047401. The next prime is 99651047471. The reversal of 99651047424 is 42474015699.

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, 67743009 + ... + 67744479.

Almost surely, 2^99651047424 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 99651047424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137451532800).

99651047424 is an abundant number, since it is smaller than the sum of its proper divisors (175252018176).

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

99651047424 is a wasteful number, since it uses less digits than its factorization.

99651047424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684 (or 1662 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 99651047424 in words is "ninety-nine billion, six hundred fifty-one million, forty-seven thousand, four hundred twenty-four".