20928099676176 has 405 divisors, whose sum is σ = 74904019396479. Its totient is φ = 5434772112000.

The previous prime is 20928099676171. The next prime is 20928099676177. The reversal of 20928099676176 is 67167699082902.

The square root of 20928099676176 is 4574724.

It is a perfect power (a square), and thus also a powerful number.

20928099676176 is a `hidden beast` number, since 20 + 9 + 280 + 9 + 96 + 76 + 176 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (20928099676171) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 4227042501 + ... + 4227047451.

Almost surely, 2^{20928099676176} is an apocalyptic number.

20928099676176 is the 4574724-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20928099676176

20928099676176 is an abundant number, since it is smaller than the sum of its proper divisors (53975919720303).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20928099676176 is an equidigital number, since it uses as much as digits as its factorization.

20928099676176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9952 (or 4974 counting only the distinct ones).

The product of its (nonzero) digits is 246903552, while the sum is 72.

The spelling of 20928099676176 in words is "twenty trillion, nine hundred twenty-eight billion, ninety-nine million, six hundred seventy-six thousand, one hundred seventy-six".