332166125721 has 8 divisors (see below), whose sum is σ = 444003756544. Its totient is φ = 220886289360.

The previous prime is 332166125573. The next prime is 332166125729. The reversal of 332166125721 is 127521661233.

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

It is not a de Polignac number, because 332166125721 - 2³³ = 323576191129 is a prime.

It is a super-2 number, since 2×332166125721² (a number of 24 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 332166125721.

It is not an unprimeable number, because it can be changed into a prime (332166125729) 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, 139447225 + ... + 139449606.

It is an arithmetic number, because the mean of its divisors is an integer number (55500469568).

Almost surely, 2^332166125721 is an apocalyptic number.

It is an amenable number.

332166125721 is a deficient number, since it is larger than the sum of its proper divisors (111837630823).

332166125721 is a wasteful number, since it uses less digits than its factorization.

332166125721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278897231.

The product of its digits is 90720, while the sum is 39.

Adding to 332166125721 its reverse (127521661233), we get a palindrome (459687786954).

The spelling of 332166125721 in words is "three hundred thirty-two billion, one hundred sixty-six million, one hundred twenty-five thousand, seven hundred twenty-one".