2120806570 has 8 divisors (see below), whose sum is σ = 3817451844. Its totient is φ = 848322624.

The previous prime is 2120806547. The next prime is 2120806577. The reversal of 2120806570 is 756080212.

It can be written as a sum of positive squares in 2 ways, for example, as 2045481529 + 75325041 = 45227^2 + 8679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2120806577) 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 3 ways as a sum of consecutive naturals, for example, 106040319 + ... + 106040338.

Almost surely, 2^2120806570 is an apocalyptic number.

2120806570 is a deficient number, since it is larger than the sum of its proper divisors (1696645274).

2120806570 is a wasteful number, since it uses less digits than its factorization.

2120806570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212080664.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 2120806570 is about 46052.2156904529. The cubic root of 2120806570 is about 1284.7945529925.

Adding to 2120806570 its reverse (756080212), we get a palindrome (2876886782).

The spelling of 2120806570 in words is "two billion, one hundred twenty million, eight hundred six thousand, five hundred seventy".