99553521070080 has 1560 divisors, whose sum is σ = 448311157420896. Its totient is φ = 20686153973760.

The previous prime is 99553521070039. The next prime is 99553521070123. The reversal of 99553521070080 is 8007012535599.

99553521070080 is a `hidden beast` number, since 9 + 9 + 5 + 535 + 21 + 0 + 7 + 0 + 0 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 99553521069999 and 99553521070026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1405035934 + ... + 1405106786.

Almost surely, 2^{99553521070080} is an apocalyptic number.

99553521070080 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 99553521070080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224155578710448).

99553521070080 is an abundant number, since it is smaller than the sum of its proper divisors (348757636350816).

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

99553521070080 is a wasteful number, since it uses less digits than its factorization.

99553521070080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70923 (or 70881 counting only the distinct ones).

The product of its (nonzero) digits is 3402000, while the sum is 54.

The spelling of 99553521070080 in words is "ninety-nine trillion, five hundred fifty-three billion, five hundred twenty-one million, seventy thousand, eighty".