20692822500 has 405 divisors, whose sum is σ = 76593145629. Its totient is φ = 4695264000.

The previous prime is 20692822481. The next prime is 20692822511. The reversal of 20692822500 is 522829602.

The square root of 20692822500 is 143850.

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

It can be written as a sum of positive squares in 7 ways, for example, as 14297941476 + 6394881024 = 119574^2 + 79968^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 in 134 ways as a sum of consecutive naturals, for example, 151042432 + ... + 151042568.

Almost surely, 2^20692822500 is an apocalyptic number.

20692822500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

20692822500 is the 143850-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20692822500

20692822500 is an abundant number, since it is smaller than the sum of its proper divisors (55900323129).

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

20692822500 is a wasteful number, since it uses less digits than its factorization.

20692822500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

Multiplying 20692822500 by its sum of digits (36), we get a square (744941610000 = 863100²).

20692822500 divided by its sum of digits (36) gives a square (574800625 = 23975²).

The spelling of 20692822500 in words is "twenty billion, six hundred ninety-two million, eight hundred twenty-two thousand, five hundred".