9666632225201 has 16 divisors (see below), whose sum is σ = 11300207930880. Its totient is φ = 8097943913280.

The previous prime is 9666632225141. The next prime is 9666632225219. The reversal of 9666632225201 is 1025222366669.

It is a cyclic number.

It is not a de Polignac number, because 9666632225201 - 2⁴² = 5268585714097 is a prime.

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 9666632225201.

It is not an unprimeable number, because it can be changed into a prime (9666632225401) 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, 72030041 + ... + 72164118.

It is an arithmetic number, because the mean of its divisors is an integer number (706262995680).

Almost surely, 2^{9666632225201} is an apocalyptic number.

It is an amenable number.

9666632225201 is a deficient number, since it is larger than the sum of its proper divisors (1633575705679).

9666632225201 is a wasteful number, since it uses less digits than its factorization.

9666632225201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144194384.

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 9666632225201 in words is "nine trillion, six hundred sixty-six billion, six hundred thirty-two million, two hundred twenty-five thousand, two hundred one".