99707604480 has 640 divisors, whose sum is σ = 391378521600. Its totient is φ = 24156610560.

The previous prime is 99707604413. The next prime is 99707604481. The reversal of 99707604480 is 8440670799.

It is a happy number.

99707604480 is a `hidden beast` number, since 9 + 97 + 0 + 76 + 0 + 4 + 480 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is a super-2 number, since 2×99707604480² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99707604481) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 61585111 + ... + 61586729.

It is an arithmetic number, because the mean of its divisors is an integer number (611528940).

Almost surely, 2^99707604480 is an apocalyptic number.

99707604480 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 99707604480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195689260800).

99707604480 is an abundant number, since it is smaller than the sum of its proper divisors (291670917120).

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

99707604480 is an equidigital number, since it uses as much as digits as its factorization.

99707604480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674 (or 1640 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 99707604480 in words is "ninety-nine billion, seven hundred seven million, six hundred four thousand, four hundred eighty".