20632756570 has 8 divisors (see below), whose sum is σ = 37138961844. Its totient is φ = 8253102624.

The previous prime is 20632756531. The next prime is 20632756577. The reversal of 20632756570 is 7565723602.

It can be written as a sum of positive squares in 2 ways, for example, as 20370996529 + 261760041 = 142727^2 + 16179^2 .

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 (20632756577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031637819 + ... + 1031637838.

Almost surely, 2^20632756570 is an apocalyptic number.

20632756570 is a deficient number, since it is larger than the sum of its proper divisors (16506205274).

20632756570 is a wasteful number, since it uses less digits than its factorization.

20632756570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063275664.

The product of its (nonzero) digits is 529200, while the sum is 43.

The spelling of 20632756570 in words is "twenty billion, six hundred thirty-two million, seven hundred fifty-six thousand, five hundred seventy".