99530970660 has 432 divisors, whose sum is σ = 368096182272. Its totient is φ = 21511526400.

The previous prime is 99530970653. The next prime is 99530970683. The reversal of 99530970660 is 6607903599.

It is a junction number, because it is equal to n+sod(n) for n = 99530970597 and 99530970606.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 12147165 + ... + 12155355.

It is an arithmetic number, because the mean of its divisors is an integer number (852074496).

Almost surely, 2^99530970660 is an apocalyptic number.

99530970660 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 99530970660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184048091136).

99530970660 is an abundant number, since it is smaller than the sum of its proper divisors (268565211612).

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

99530970660 is a wasteful number, since it uses less digits than its factorization.

99530970660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8272 (or 8248 counting only the distinct ones).

The product of its (nonzero) digits is 2755620, while the sum is 54.

The spelling of 99530970660 in words is "ninety-nine billion, five hundred thirty million, nine hundred seventy thousand, six hundred sixty".