9525909966 has 32 divisors (see below), whose sum is σ = 19986393600. Its totient is φ = 3022625760.

The previous prime is 9525909961. The next prime is 9525909983. The reversal of 9525909966 is 6699095259.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9525909961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373186 + ... + 397893.

It is an arithmetic number, because the mean of its divisors is an integer number (624574800).

Almost surely, 2^9525909966 is an apocalyptic number.

9525909966 is an abundant number, since it is smaller than the sum of its proper divisors (10460483634).

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

9525909966 is a wasteful number, since it uses less digits than its factorization.

9525909966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771184.

The product of its (nonzero) digits is 11809800, while the sum is 60.

The square root of 9525909966 is about 97600.7682654189. The cubic root of 9525909966 is about 2119.8354837032.

The spelling of 9525909966 in words is "nine billion, five hundred twenty-five million, nine hundred nine thousand, nine hundred sixty-six".