9665052722 has 16 divisors (see below), whose sum is σ = 15788205720. Its totient is φ = 4410671232.

The previous prime is 9665052703. The next prime is 9665052739. The reversal of 9665052722 is 2272505669.

It is a Cunningham number, because it is equal to 98311²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1855972561 + 7809080161 = 43081^2 + 88369^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2086073 + ... + 2090700.

Almost surely, 2^9665052722 is an apocalyptic number.

9665052722 is a deficient number, since it is larger than the sum of its proper divisors (6123152998).

9665052722 is a wasteful number, since it uses less digits than its factorization.

9665052722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4176877.

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 9665052722 is about 98311.0000050859. Note that the first 5 decimals coincide. The cubic root of 9665052722 is about 2130.1069488645.

The spelling of 9665052722 in words is "nine billion, six hundred sixty-five million, fifty-two thousand, seven hundred twenty-two".