20944174528 has 14 divisors (see below), whose sum is σ = 41561096456. Its totient is φ = 10472087232.

The previous prime is 20944174457. The next prime is 20944174529. The reversal of 20944174528 is 82547144902.

It is a super-3 number, since 3×20944174528³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20944174529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163626300 + ... + 163626427.

Almost surely, 2^20944174528 is an apocalyptic number.

It is an amenable number.

20944174528 is a deficient number, since it is larger than the sum of its proper divisors (20616921928).

20944174528 is an equidigital number, since it uses as much as digits as its factorization.

20944174528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327252739 (or 327252729 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 20944174528 in words is "twenty billion, nine hundred forty-four million, one hundred seventy-four thousand, five hundred twenty-eight".