9655988081 has 8 divisors (see below), whose sum is σ = 10185427200. Its totient is φ = 9128671920.

The previous prime is 9655988059. The next prime is 9655988101. The reversal of 9655988081 is 1808895569.

9655988081 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9655988081 - 2¹⁴ = 9655971697 is a prime.

It is a super-2 number, since 2×9655988081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9655988081.

It is not an unprimeable number, because it can be changed into a prime (9655988021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521390 + ... + 539591.

It is an arithmetic number, because the mean of its divisors is an integer number (1273178400).

Almost surely, 2^9655988081 is an apocalyptic number.

It is an amenable number.

9655988081 is a deficient number, since it is larger than the sum of its proper divisors (529439119).

9655988081 is a wasteful number, since it uses less digits than its factorization.

9655988081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061479.

The product of its (nonzero) digits is 6220800, while the sum is 59.

The square root of 9655988081 is about 98264.8873250257. The cubic root of 9655988081 is about 2129.4408137047.

The spelling of 9655988081 in words is "nine billion, six hundred fifty-five million, nine hundred eighty-eight thousand, eighty-one".