2106533700 has 108 divisors (see below), whose sum is σ = 6815897088. Its totient is φ = 543614400.

The previous prime is 2106533651. The next prime is 2106533701. The reversal of 2106533700 is 73356012.

It is a happy number.

2106533700 is a `hidden beast` number, since 2 + 1 + 0 + 653 + 3 + 7 + 0 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106533701) 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 in 35 ways as a sum of consecutive naturals, for example, 9852 + ... + 65651.

Almost surely, 2^2106533700 is an apocalyptic number.

2106533700 is a gapful number since it is divisible by the number (20) 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 2106533700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3407948544).

2106533700 is an abundant number, since it is smaller than the sum of its proper divisors (4709363388).

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

2106533700 is a wasteful number, since it uses less digits than its factorization.

2106533700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75554 (or 75544 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 2106533700 is about 45896.9900973909. The cubic root of 2106533700 is about 1281.9058725692.

Adding to 2106533700 its reverse (73356012), we get a palindrome (2179889712).

The spelling of 2106533700 in words is "two billion, one hundred six million, five hundred thirty-three thousand, seven hundred".