9945636601 has 8 divisors (see below), whose sum is σ = 10069897824. Its totient is φ = 9821481120.

The previous prime is 9945636559. The next prime is 9945636607. The reversal of 9945636601 is 1066365499.

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 9945636601 - 2¹¹ = 9945634553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9945636607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172086 + ... + 222496.

It is an arithmetic number, because the mean of its divisors is an integer number (1258737228).

Almost surely, 2^9945636601 is an apocalyptic number.

It is an amenable number.

9945636601 is a deficient number, since it is larger than the sum of its proper divisors (124261223).

9945636601 is a wasteful number, since it uses less digits than its factorization.

9945636601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52871.

The product of its (nonzero) digits is 1049760, while the sum is 49.

The square root of 9945636601 is about 99727.8125750284. The cubic root of 9945636601 is about 2150.5235141968.

The spelling of 9945636601 in words is "nine billion, nine hundred forty-five million, six hundred thirty-six thousand, six hundred one".