20328210166441 has 16 divisors (see below), whose sum is σ = 20655838684800. Its totient is φ = 20001920174208.

The previous prime is 20328210166393. The next prime is 20328210166463. The reversal of 20328210166441 is 14466101282302.

It is a happy number.

It is not a de Polignac number, because 20328210166441 - 2³³ = 20319620231849 is a prime.

It is a super-2 number, since 2×20328210166441² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20328210166394 and 20328210166403.

It is not an unprimeable number, because it can be changed into a prime (20328210136441) 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, 356237970 + ... + 356295028.

It is an arithmetic number, because the mean of its divisors is an integer number (1290989917800).

Almost surely, 2^{20328210166441} is an apocalyptic number.

It is an amenable number.

20328210166441 is a deficient number, since it is larger than the sum of its proper divisors (327628518359).

20328210166441 is a wasteful number, since it uses less digits than its factorization.

20328210166441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68688.

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 20328210166441 in words is "twenty trillion, three hundred twenty-eight billion, two hundred ten million, one hundred sixty-six thousand, four hundred forty-one".