20560692100 has 81 divisors (see below), whose sum is σ = 48356600943. Its totient is φ = 7584757440.

The previous prime is 20560692079. The next prime is 20560692121. The reversal of 20560692100 is 129606502.

The square root of 20560692100 is 143390.

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

It is an interprime number because it is at equal distance from previous prime (20560692079) and next prime (20560692121).

It can be written as a sum of positive squares in 4 ways, for example, as 5299548804 + 15261143296 = 72798^2 + 123536^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 18640149 + ... + 18641251.

Almost surely, 2^20560692100 is an apocalyptic number.

20560692100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

20560692100 is the 143390-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20560692100

20560692100 is an abundant number, since it is smaller than the sum of its proper divisors (27795908843).

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

20560692100 is a wasteful number, since it uses less digits than its factorization.

20560692100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 20560692100 in words is "twenty billion, five hundred sixty million, six hundred ninety-two thousand, one hundred".