3722210665161 has 8 divisors (see below), whose sum is σ = 4975705775040. Its totient is φ = 2475094666032.

The previous prime is 3722210665141. The next prime is 3722210665189. The reversal of 3722210665161 is 1615660122273.

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

It is not a de Polignac number, because 3722210665161 - 2¹⁸ = 3722210403017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3722210665111) 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, 1594776325 + ... + 1594778658.

It is an arithmetic number, because the mean of its divisors is an integer number (621963221880).

Almost surely, 2^{3722210665161} is an apocalyptic number.

It is an amenable number.

3722210665161 is a deficient number, since it is larger than the sum of its proper divisors (1253495109879).

3722210665161 is a wasteful number, since it uses less digits than its factorization.

3722210665161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3189555375.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 3722210665161 in words is "three trillion, seven hundred twenty-two billion, two hundred ten million, six hundred sixty-five thousand, one hundred sixty-one".