9910661600 has 108 divisors (see below), whose sum is σ = 28144620504. Its totient is φ = 3397927680.

The previous prime is 9910661599. The next prime is 9910661617. The reversal of 9910661600 is 61660199.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 87212 + ... + 165611.

It is an arithmetic number, because the mean of its divisors is an integer number (260598338).

Almost surely, 2^9910661600 is an apocalyptic number.

It is an amenable number.

9910661600 is an abundant number, since it is smaller than the sum of its proper divisors (18233958904).

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

9910661600 is a wasteful number, since it uses less digits than its factorization.

9910661600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252857 (or 252837 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 9910661600 is about 99552.3058497391. The cubic root of 9910661600 is about 2147.9996971472. Note that the first 3 decimals are identical.

The spelling of 9910661600 in words is "nine billion, nine hundred ten million, six hundred sixty-one thousand, six hundred".