99464578560 has 400 divisors, whose sum is σ = 359786677536. Its totient is φ = 26260733952.

The previous prime is 99464578559. The next prime is 99464578589. The reversal of 99464578560 is 6587546499.

99464578560 is a `hidden beast` number, since 9 + 9 + 4 + 6 + 4 + 578 + 56 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21355752 + ... + 21360408.

Almost surely, 2^99464578560 is an apocalyptic number.

99464578560 is a gapful number since it is divisible by the number (90) 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 99464578560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179893338768).

99464578560 is an abundant number, since it is smaller than the sum of its proper divisors (260322098976).

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

99464578560 is a wasteful number, since it uses less digits than its factorization.

99464578560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4795 (or 4770 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 63.

The spelling of 99464578560 in words is "ninety-nine billion, four hundred sixty-four million, five hundred seventy-eight thousand, five hundred sixty".