9755661331 has 16 divisors (see below), whose sum is σ = 10558175040. Its totient is φ = 8960676480.

The previous prime is 9755661299. The next prime is 9755661341. The reversal of 9755661331 is 1331665579.

It is a cyclic number.

It is not a de Polignac number, because 9755661331 - 2⁵ = 9755661299 is a prime.

It is a super-2 number, since 2×9755661331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9755661341) 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, 4555521 + ... + 4557661.

It is an arithmetic number, because the mean of its divisors is an integer number (659885940).

Almost surely, 2^9755661331 is an apocalyptic number.

9755661331 is a deficient number, since it is larger than the sum of its proper divisors (802513709).

9755661331 is a wasteful number, since it uses less digits than its factorization.

9755661331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3726.

The product of its digits is 510300, while the sum is 46.

The square root of 9755661331 is about 98770.7513943273. The cubic root of 9755661331 is about 2136.7427469138.

The spelling of 9755661331 in words is "nine billion, seven hundred fifty-five million, six hundred sixty-one thousand, three hundred thirty-one".