20724552576 has 768 divisors, whose sum is σ = 80597462400. Its totient is φ = 4954521600.

The previous prime is 20724552571. The next prime is 20724552587. The reversal of 20724552576 is 67525542702.

20724552576 is a `hidden beast` number, since 2 + 0 + 7 + 24 + 5 + 52 + 576 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20724552571) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 51681976 + ... + 51682376.

Almost surely, 2^20724552576 is an apocalyptic number.

20724552576 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20724552576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40298731200).

20724552576 is an abundant number, since it is smaller than the sum of its proper divisors (59872909824).

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

20724552576 is a wasteful number, since it uses less digits than its factorization.

20724552576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 45.

The spelling of 20724552576 in words is "twenty billion, seven hundred twenty-four million, five hundred fifty-two thousand, five hundred seventy-six".